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Public-domain commentary
Matthew Henry
From his Commentary on the Whole Bible. Henry comments on passages, not single verses — this entry covers Mark 8:10–21. His three-level outline is real structure in the source text, so it is rendered as structure.
Still Christ is upon motion; now he visits the parts of Dalmanutha, that no corner of the land of Israel might say that they had not had his presence with them. He came thither by ship (Mar 8:10); but, meeting with occasions of dispute there, and not with opportunities of doing good, he entered into the ship again (Mar 8:13), and came back. In these verses, we are told,
I.How he refused to gratify the Pharisees, who challenged him to give them a sign from heaven.
They came forth on purpose to question with him; not to propose questions to him, that they might learn of him, but to cross question with him, that they might ensnare him.
1.They demanded of him a sign from heaven, as if the signs he gave them on earth, which were more familiar to them, and were more capable of being examined and enquired into, were not sufficient. There was a sign from heaven at his baptism, in the descent of the dove, and the voice (Mat 3:16, Mat 3:17); it was public enough; and if they had attended John's baptism as they ought to have done, they might themselves have seen it. Afterward, when he was nailed to the cross, they prescribed a new sign; Let him come down from the cross, and we will believe him; thus obstinate infidelity will still have something to say, though ever so unreasonable. They demanded this sign, tempting him; not in hopes that he would give it them, that they might be satisfied, but in hopes that he would not, that they might imagine themselves to have a pretence for their infidelity.
2.He denied them their demand; He sighed deeply in his spirit, Mar 8:12. He groaned (so some), being grieved for the hardness of their hearts, and the little influence that his preaching and miracles had had upon them. The infidelity of those that have long enjoyed the means of conviction, is a great grief to the Lord Jesus; it troubles him, that sinners should thus stand in their own light, and put a bar in their own door. (1.) He expostulates with them upon this demand; "Why doth this generation seek after a sign; this generation, that is so unworthy to have the gospel brought to it, and to have any sign accompanying it; this generation, that so greedily swallows the traditions of the elders, without the confirmation of any sign at all; this generation, into which, by the calculating of the times prefixed in the Old Testament, they might easily perceive that the coming of the Messiah must fall; this generation, that has had such plenty of sensible and merciful signs given them in the cure of their sick? What an absurdity is it for them to desire a sign!" (2.) He refuses to answer their demand; Verily, I say unto you, there shall no sign, no such sign, be given to this generation. When God spoke to particular persons in a particular case, out of the road of his common dispensation, they were encouraged to ask a sign, as Gideon and Ahaz; but when he speaks in general to all, as in the law and the gospel, sending each with their own evidence, it is presumption to prescribe other signs than what he has given. Shall any teach God knowledge? He denied them, and then left them, as men not fit to be talked with; if they will not be convinced, they shall not; leave them to their strong delusions.
II.How he warned his disciples against the leaven of the Pharisees and of Herod. Observe here,
1.What the caution was (Mar 8:15); "Take heed, beware, lest ye partake of the leaven of the Pharisees, lest ye embrace the tradition of the elders, which they are so wedded to, lest ye be proud, and hypocritical, and ceremonious, like them." Matthew adds, and of the Sadducees; Mark adds, and of Herod: whence some gather, that Herod, and his courtiers were generally Sadducees, that is, deists, men of no religion. Others give this sense, The Pharisees demanded a sign from heaven; and Herod was long desirous to see some miracle wrought by Christ (Luk 23:8); such as he should prescribe, so that the leaven of both was the same; they were unsatisfied with the signs they had, and would have others of their own devising; "Take heed of this leaven" (saith Christ), "be convinced by the miracles ye have seen, and covet not to see more."
2.How they misunderstood this caution. It seems, at their putting to sea this time, they had forgotten to take bread, and had not in their ship more than one loaf, Mar 8:14. When therefore Christ bid them beware of the leaven of the Pharisees, they understood it as an intimation to them, not to apply themselves to any of the Pharisees for relief, when they came to the other side, for they had lately been offended at them for eating with unwashen hands. They reasoned among themselves, what should be the meaning of this caution, and concluded, "It is because we have no bread; he saith this, to reproach us for being so careless as to go to sea, and go among strangers, with but one loaf of bread; he doth, in effect, tell us, we must be brought to short allowance, and must eat our bread by weight." They reasoned it - dielogizonto, they disputed about it; one said, "It was owing to you;" and the other said, "It was owing to you, that we are so ill provided for this voyage." Thus distrust of God makes Christ's disciples quarrel among themselves.
3.The reproof Christ gave them for their uneasiness in this matter, as it argued a disbelief of his power to supply them, notwithstanding the abundant experience they had had of it. The reproof is given with some warmth, for he knew their hearts, and knew they needed to be thus soundly chidden; "Perceive ye not yet, neither understand, that which you have had so many demonstrations of? Have ye your hearts yet hardened, so as that nothing will make any impression upon them, or bring them to compliance with your Master's designs? Having eyes, see ye not that which is plain before your eyes? Having ears, hear ye not that which you have been so often told? How strangely stupid and senseless are ye! Do ye not remember that which was done but the other day, when I broke the five loaves among the five thousand, and soon after, the seven loaves among the four thousand? Do ye not remember how many baskets full ye took up of the fragments?" Yes, they did remember, and could tell that they took up twelve baskets full one time, and seven another; "Why then," said he, "how is it that ye do not understand? As if he that multiplied five loaves, and seven, could not multiply one." They seemed to suspect that the one was not matter enough to work upon, if he should have a mind to entertain his hearers a third time: and if that was their thought, it was indeed a very senseless one, as if it were not all alike to the Lord, to save by many or few, and as easy to make one loaf to feed five thousand as five. It was therefore proper to remind them, not only of the sufficiency, but of the overplus, of the former meals; and justly were they chidden for not understanding what Christ therein designed, and what they from thence might have learned. Note,
(1.)The experiences we have had of God's goodness to us in the way of duty, greatly aggravate our distrust of him, which is therefore very provoking to the Lord Jesus.
(2.)Our not understanding of the true intent and meaning of God's favours to us, is equivalent to our not remembering of them.
(3.)We are therefore overwhelmed with present cares and distrusts, because we do not understand, and remember, what we have known and seen of the power and goodness of our Lord Jesus. It would be a great support to us, to consider the days of old, and we are wanting both to God and ourselves if we do not.
(4.)When we thus forgot the works of God, and distrust him, we should chide ourselves severely for it, as Christ doth his disciples here; "Am I thus without understanding? How is it that my heart is thus hardened?"
Historical interpretation
Seven Centuries of Reception
4 surviving comments on this verse. Each one is dated, so this reads as a timeline rather than a list.
Select a marker to jump to its quote. Markers stagger vertically where authors wrote within a few decades of each other.
Can you hear the intense displeasure in his voice? For nowhere else does he appear to have rebuked them so strongly. Why now? In order to cast out their prejudices about clean foods. … For not everywhere is permissiveness a good thing. As he earlier had allowed them to speak freely, now he reproves them.… He even reminds them of the specific numbers of loaves and of persons fed, both to bring them to recall the past, and to make them more attentive to the future.
(Vict. Ant. e Cat. in Marc.) Matthew says, of the leaven of the Pharisees and of the Sadducees; Luke, however, of the Pharisees only. All three, therefore, name the Pharisees, as being the most important of them, but Matthew and Mark have each mentioned one of the secondary sects; and fitly has Mark added of Herod, as a supplement to Matthew's narrative, in which they were left out. But in saying this, He by degrees brings the disciples to understanding and faith.
(in Marc. 2, 33) The Pharisees, then, seek a sign from heaven, that He, Who had for the second time fed many thousands of men with a few loaves of bread, should now, after the example of Moses, refresh the whole nation in the last time with manna sent down from heaven, and dispersed amongst them all.
(ubi sup.) When, as related above, He was about to refresh the believing multitude, He gave thanks, so now, on account of the foolish petition of the Pharisees, He groans; because, bearing about with Him the feelings of human nature, as He rejoices over the salvation of men, so He grieves over their errors. Wherefore it goes on, And he groaned in spirit, and saith, Why doth this generation seek after a sign? Verily I say unto you, If a sign shall be given to this generation. That is, no sign shall be given; as it is written in the Psalms, (Ps. 89:36) I have sworn once by my holiness, if I shall fail David, that is, I will not fail David.
(ubi sup.) For a sign from heaven was not to be given to a generation of men, who tempted the Lord; but to a generation of men seeking the Lord, He shows a sign from heaven, when in the sight of the Apostles He ascended into heaven. It goes on, And he left them, and entering into a ship again, he departed to the other side.
(ubi sup.) Some may ask, how they had no bread, when they had filled seven baskets just before they embarked in the ship. But Scripture relates that they had forgotten to take them with them, which is a proof how little care they had for the flesh in other things, since in their eagerness to follow the Lord, even the necessity of refreshing their bodies had escaped from their mind.
(ubi sup.) Or, the leaven of the Pharisees is making the decrees of the divine law inferior to the traditions of men, preaching the law in word, attacking it in deed, tempting the Lord, and disbelieving His doctrine and His works; but the leaven of Herod is adultery, murder, rash swearing, a pretence of religion, hatred to Christ and His forerunner.
(ubi sup.) Taking occasion then from the precept, which He had commanded, saying, Beware of the leaven of the Pharisees and of the leaven of Herod, our Saviour teaches them what was the meaning of the five and the seven loaves, concerning which He adds, And do ye not remember, when I brake the five loaves amongst five thousand, and how many baskets full of fragments ye took up? For if the leaven mentioned above means perverse traditions, of course the food, with which the people of God was nourished, means the true doctrine.
After that our Lord had worked the miracle of the loaves, He immediately retires into another spot, lest on account of the miracle, the multitudes should take Him to make Him a king; wherefore it is said, And straightway he entered into a ship with his disciples, and came into the parts of Dalmanutha.
Or they seek for a sign from heaven, that is, they wish Him to make the sun and moon stand still, to bring down hail, and change the atmosphere; for they thought that He could not perform miracles from heaven, but could only in Beelzebub perform a sign on earth.
Now the reason why the Lord did not listen to them was, that the time of signs from heaven had not arrived, that is, the time of the second Advent, when the powers of the heaven shall be shaken, and the moon shall not give her light. But in the time of the first Advent, all things are full of mercy, and such things do not take place.
The Lord indeed quits the Pharisees, as men uncorrected; for where there is a hope of correction, there it is right to remain; but where the evil is incorrigible, we should go away. There follows: Now they had forgotten to take bread, neither had they in the ship with them more than one loaf.
By a special providence1 also the disciples forgot to take bread, that they might be blamed by Christ, and thus become better, and arrive at a knowledge of Christ's power. For it goes on, And he charged them, saying, Take heed, and beware of the leaven of the Pharisees and of the leaven of Herod.
He means by leaven their hurtful and corrupt doctrine, full of the old malice, for the Herodians were the teachers, who said that Herod was the Christ.
But the disciples themselves thought that the Lord spoke of the leaven of bread. Wherefore it goes on, And they reasoned amongst themselves, saying, it is because we have no bread; and this they said, as not understanding the power of Christ, who could make bread out of nothing; wherefore the Lord reproves them; for there follows, And when Jesus knew it, he said unto them, Why reason ye because ye have no bread?
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Summary
Mark 8:21 captures Jesus' profound exasperation with His disciples' persistent spiritual dullness and lack of comprehension. Despite having just witnessed His miraculous power in feeding thousands and receiving direct warnings about spiritual dangers, they remain fixated on material concerns, failing to grasp the deeper spiritual truths He endeavors to impart about His identity, His kingdom, and the nature of true spiritual discernment.
Context
Literary Context
This verse is a critical moment within a broader narrative in Mark's Gospel that highlights the disciples' slow spiritual growth and their struggle to understand Jesus' true identity and mission. Immediately preceding this, Jesus had miraculously fed four thousand people with seven loaves and a few fish (Mark 8:1-9), a miracle that closely mirrored His earlier feeding of five thousand (Mark 6:30-44). Despite these two profound demonstrations of His divine power and provision, the disciples were concerned about their lack of physical bread in the boat (Mark 8:14). Jesus then warned them to "take heed, beware of the leaven of the Pharisees, and of the leaven of Herod" (Mark 8:15), a spiritual metaphor for corrupt teaching and influence. The disciples, however, interpreted this literally, assuming Jesus was rebuking them for not bringing enough bread (Mark 8:16). Jesus' series of rhetorical questions in Mark 8:17-21 underscores their failure to connect His miraculous signs with His spiritual teachings, culminating in the frustrated query of Mark 8:21.
Historical & Cultural Context
In first-century Judaism, there was a widespread expectation of a Messiah who would be a powerful political and military leader, liberating Israel from Roman oppression. This expectation often overshadowed the spiritual nature of God's kingdom. The disciples, being men of their time, were deeply influenced by these prevailing cultural hopes, which colored their perception of Jesus. They anticipated a physical kingdom and a tangible victory, making it difficult for them to grasp Jesus' teachings about spiritual realities, suffering, and the true nature of His redemptive work. "Leaven" (yeast) was a common biblical metaphor, often used to symbolize corrupting influence or evil (e.g., 1 Corinthians 5:6-8). For Jesus to use it in reference to the Pharisees and Herod was a clear indictment of their spiritual and moral corruption, which the disciples, focused on physical bread, entirely missed.
Key Themes
This verse powerfully illustrates several key themes prevalent in Mark's Gospel. Firstly, Spiritual Dullness is a recurring motif, showing the disciples' persistent struggle to perceive and comprehend the deeper truths of Jesus' identity and teachings, despite being His closest companions. They demonstrate a remarkable inability to "connect the dots" between His miraculous deeds and their spiritual significance. Secondly, the passage highlights the Misunderstanding of Jesus' Identity and Mission. The disciples, like many in their day, were looking for a political savior, not a suffering servant. Their focus on earthly concerns (like physical bread) prevented them from grasping the spiritual nature of Jesus' kingdom and His divine authority. This theme sets the stage for Peter's partial confession in Mark 8:29 and Jesus' subsequent teaching on suffering. Thirdly, the verse underscores the Need for Spiritual Discernment. Jesus' question is a plea for His disciples to move beyond superficial, literal interpretations and to develop the spiritual insight necessary to understand His parables, warnings, and miracles as revelations of God's truth and purpose. It calls for a deeper, Spirit-led comprehension that transcends mere intellectual assent.
Exposition and Analysis
Key Word Analysis
Derived from syn (together with) and hiēmi (to send or put), this verb literally means "to put together" or "to bring together." In a mental sense, it signifies to comprehend, to grasp, or to perceive by connecting various pieces of information or experiences to form a coherent whole. Jesus is not merely asking if they heard His words, but if they have truly processed and integrated the implications of His miracles (the feedings) and His warnings (the leaven) into a unified understanding of who He is and what He is doing. Their failure to syníēmi implies a lack of spiritual insight and an inability to perceive the spiritual logic behind His actions and words.
This interrogative particle of manner asks "in what way?" or "by what means?" When used in a rhetorical question, as it is here, it conveys a strong sense of surprise, disappointment, or even exasperation. Jesus is not truly seeking an answer to "how" they don't understand, but rather expressing His astonishment and frustration at their continued spiritual blindness. It highlights the unreasonableness of their lack of comprehension given the overwhelming evidence they have witnessed.
Verse Breakdown
"And he said unto them,"
This introductory phrase sets the stage for Jesus' direct address to His disciples. It follows a series of questions He has already posed to them, indicating a building tension and His growing frustration with their lack of spiritual perception.
"How is it that ye do not understand?"
This is a powerful rhetorical question, not seeking an answer, but expressing Jesus' deep disappointment and astonishment. It highlights the disciples' persistent spiritual dullness despite having witnessed two miraculous feedings and received direct teaching about the "leaven" of the Pharisees and Herod. The question implies that, given all they had seen and heard, their failure to grasp the spiritual significance of these events was inexplicable and inexcusable. It underscores their inability to connect the dots between Jesus' power, His warnings, and the true nature of His kingdom.
Literary Devices
Mark 8:21 is a masterclass in the use of a Rhetorical Question. Jesus does not expect a literal answer from His disciples; rather, the question "How is it that ye do not understand?" serves to emphasize their profound spiritual dullness and His own exasperation. It forces the disciples (and the reader) to confront their lack of comprehension in light of the overwhelming evidence of Jesus' power and teaching. This rhetorical device highlights the absurdity of their material preoccupation in the face of spiritual revelation. Furthermore, there is a strong element of Irony present. The disciples, who are closest to Jesus and are being personally discipled by Him, consistently fail to grasp His identity and mission, while outsiders or those with less direct exposure sometimes demonstrate greater faith or understanding. This ironic contrast underscores the theme of spiritual blindness, even among those privileged to walk with the Son of God.
Theological and Thematic Connections
Mark 8:21 stands as a poignant reminder of the human propensity for spiritual dullness, even in the presence of divine revelation. It highlights the ongoing struggle for true understanding, suggesting that merely witnessing miracles or hearing truth is insufficient without spiritual perception. Jesus' frustration underscores the critical importance of moving beyond superficial, literal interpretations to grasp the deeper, spiritual realities of God's kingdom. This verse implicitly teaches that understanding God's ways requires more than intellectual assent; it demands a receptive heart and a mind open to the Spirit's illumination, allowing us to connect God's actions and words into a cohesive picture of His character and purposes.
Reflection and Application
Mark 8:21 serves as a timeless mirror for believers, prompting us to examine our own spiritual comprehension. Just like the disciples, we can become so preoccupied with the material, the immediate, or our own preconceived notions that we miss the profound spiritual truths Jesus is revealing. This verse challenges us to cultivate a posture of humility and active listening, recognizing that true understanding comes not from our own cleverness but from a dependence on God's Spirit. It calls us to reflect on areas where we might be spiritually dull, failing to connect God's past faithfulness with His present work, or misinterpreting His warnings and teachings through a worldly lens. We are encouraged to pray for spiritual eyes to see and ears to hear, asking the Lord to open our minds to grasp the depth and breadth of His wisdom, ensuring we are not merely hearing His words but truly understanding their transformative power for our lives.
Questions for Reflection
FAQ
Why were the disciples so slow to understand Jesus, despite being with Him constantly?
The disciples' slowness to understand stemmed from several factors. Firstly, their ingrained cultural and theological expectations of a political Messiah often overshadowed Jesus' teachings about a spiritual kingdom and a suffering servant. They struggled to reconcile their hopes for an earthly king with Jesus' emphasis on humility, sacrifice, and spiritual transformation. Secondly, spiritual truths often require divine illumination, which is a process. While they were with Jesus physically, their spiritual eyes were not fully opened until Pentecost, when the Holy Spirit empowered them to grasp the full significance of Christ's life, death, and resurrection (Acts 2:1-4). Finally, their human limitations, including fear, self-interest, and a tendency to interpret things literally rather than spiritually, contributed to their dullness, a common human struggle that Mark 8:21 highlights.
What is the "leaven" Jesus refers to in the preceding verses?
In Mark 8:15, Jesus warns against the "leaven of the Pharisees, and of the leaven of Herod." "Leaven" (yeast) is a biblical metaphor for a pervasive, corrupting influence that spreads throughout a mass. The "leaven of the Pharisees" refers to their hypocrisy, legalism, and false teachings that emphasized external righteousness over internal transformation (Matthew 23:1-7). The "leaven of Herod" likely refers to his worldly ambition, political opportunism, and moral corruption, representing a secular and materialistic mindset that opposed God's kingdom. Jesus was warning His disciples against adopting either of these corrupting influences, which could blind them to spiritual truth and hinder their faith.
Christ-Centered Fulfillment
Mark 8:21, with Jesus' exasperated question, "How is it that ye do not understand?", profoundly underscores the human condition's inherent spiritual blindness and the absolute necessity of Christ as the ultimate revealer of truth. The disciples' inability to grasp the spiritual significance of the bread miracles and the warning about "leaven" reflects humanity's deep-seated struggle to perceive divine realities apart from divine intervention. Jesus, however, does not abandon them in their dullness. Instead, His very question, though rhetorical, is an act of patient pedagogy, continually drawing them towards deeper understanding. He is the one in whom "are hidden all the treasures of wisdom and knowledge" (Colossians 2:3), the light that shines in the darkness, which the darkness cannot comprehend (John 1:5). Through His life, death, and resurrection, Jesus not only reveals truth but also provides the means for spiritual understanding, sending the Holy Spirit to guide believers into all truth (John 16:13). Thus, the disciples' bewildered state in Mark 8:21 ultimately points to Christ as the only one who can open blind eyes and grant true spiritual comprehension, transforming dullness into discernment through His grace and the power of His Spirit.