Oecumenius

Two things are sought here, one, how it is said that he was heard, and yet he himself needed to pass by death, but he did not pass by. For he was indeed crucified and died. Secondly, from what kind of reverence does he say he was heard? And thirdly, although being the Son, to whom is he to be joined? To the one who was heard from reverence, or to those that follow, so that he may learn obedience from what he suffered, although being the Son. For there is not a small difference between these. As for the first, it is clear that the request was not one, but a certain double one: one rejecting death, the other requesting it. For he also says in the same prayer and supplication: "But let not my will be done, but yours." (Luke 22:42)
And to clarify this more clearly, John says that the Son asks, saying, "Father, glorify Your Son, that Your Son may also glorify You," (Jn. 17:1) referring to the glory of the cross and death as he indicates. Thus, the divine Paul rightly says, "He was heard." And this, from reverence, has come close to what has been said about being made clear. For we have mentioned two requests, one for the avoidance of death, the other for the acceptance of what was truly a matter of great reverence; "But not my will, but Yours." (Luke 22:42) Therefore, Christ was heard, not from the avoidance, but from the reverence, that is, that request of His came forth, not according to the avoidance, but according to the reverence.
For this reason, he says, and having been made perfect, that is, having been fully recognized through sufferings and the cross and death, he is exceedingly good and generous. This was also indicated above; speaking of prayers and supplications, he hinted at the duality of the request. Then, having spoken of prayers and supplications, he did not bring about the passing of death, but rather, towards the one who was able to save him from death, adding this well and wisely, so that when you contemplate him being crucified and buried, you should not think that he was held back by the power of the Father, but that it was a common will for Christ to suffer these things for the salvation of the world. This can also be said in relation to the resurrection. For in many places, the divine Paul, speaking, says that the Father raised Christ. Therefore, having raised him, he delivered him from death and saved him. But thus, in my opinion, these things are.
As for the statement, "Although he was a Son," if anyone were to take it in an extraordinary way (for the use of this is infinite to the divine Paul), the thought would be naturally advanced as follows: that in the days of his flesh, although he was a Son, he offered prayers and supplications, and moreover, that is, though having the greatest privilege as a Son, to do all things without supplication and request by the sovereign will, as the Father does, nevertheless, since he was in the days of the flesh, he offered prayers and supplications. It can also be accordingly connected with, "and he was heard because of his reverent submission," as if he were saying, "He was heard," although he was a Son, and did not need to be heard, having a will in harmony with the Father's will, and being fulfilled without any request.
If you connect it with what follows, the mind will benefit. But first, what does it mean to consider that He learned obedience from what He suffered? For He learned to obey the Father from what He suffered, and through experience, He gained knowledge of being subject to Him; or rather, He learned through experience the extent of obedience, how much He obeyed the Father, such as being crucified and dying, and rising again, and lifting up the human nature at the right hand of the Father, and saving humanity? For these things are from that obedience which was generated in saying, "Father, glorify Your Son." (Jn. 17:1) For this obedience, however great and however much, before obeying the Father, Christ knew as Son and God, just as the Father did; and having been heard, He learned it through what He suffered and experienced. Therefore, as someone might grasp, my second interpretation seems more likely. Thus, it has no uncertainty in saying, "Although He was a Son."

"prayers and supplications." Not only prayers and supplications, but also he offered them with cries and tears. However, Paul said that he was lowering himself to save them.
"and he was heard." So much was he heard that he even rose again: this he said because of the weakness of the listeners, who had not yet conceived a glorious opinion of Christ.
"because of his reverent submission." He said that he was heard not only out of the grace of the Father but also because of his own reverence. For his reverence was so great, he said, that the Father also revered him. However, there is a double reason for these humble words, namely the flesh and the weakness of the listeners.
"Although he was a Son, he learned obedience through what he suffered." Therefore, he says, He was so obedient (and He obeyed as is fitting for a Son to the Father) that after He was incarnate, He even endured the cross to death. "And He learned from what He suffered." He indeed says, What is death, being God? For what has God not known? But also from what he suffered, he learned. Not only, he says, as he was God, but also as he was man, having experienced death.
In another way.

"Concerning this Christ, there is much to say and it is hard to explain." He says it is because of you, that you are sluggish, and you do not grasp the more perfect things about Him. For having spoken so many humble things about the incarnation, he wished to move on to the divine matters. Therefore, because of your cause, he says, that you are sluggish and do not allow for the perfect things, the word concerning how Christ is a high priest according to the order of Melchizedek is hard to explain. And because you do not understand, for this reason I am not able to interpret it well.
"since you have become sluggish." Trials and tribulations, he says, have made you sluggish, and you are not able to listen perfectly to the words.
"For although you ought to be teachers." He brings forth the accusation with praise. For you are sluggish and careless, he says, although you should also teach others according to the reason of the time. Thus, it shows that they had believed a long time ago,and have heard mysteries; both of these things are worthy of praise, provided they themselves have not been careless. Time, he says, makes people stronger; but you have used this in vain, having been set free.
“since you have become sluggish in hearing.” The trials and tribulations, he says, have made you sluggish, and you are not able to listen to perfect words. “For although you ought to be teachers by this time.” Then he brings the accusation with praise. For he says you are dull and lazy, though you ought to be teaching others by now because of the length of time. Thus he shows that they had trusted much and had heard the mysteries; both of these things are worthy of praise if they themselves had not become lazy. Time, he says, makes stronger; but you have wasted this opportunity after being set free. For though you ought to be teachers, you are not only not teachers, but you are also unable to learn anything except the elementary, humble, and simple things; and even these not simply, but the weaker still, the elements of the beginning of the words of God. He does not say the elements of words, but the elements of the beginning of words. The elements of the words of God would reasonably be the words concerning the incarnation; but the elements of the beginning of words, which he goes on to say, are: "Not again a foundation," and so forth.
For you are indeed ought to be teachers, not only are you not teachers, but you are also unable to learn, unless it be the most elementary, humble, and simplest things.
And these not simply, but he who is still weaker, the basic principles of the oracles of God. He does not say the oracles, but the basic principles of the oracles of God. And if there are basic principles of the oracles of God, those concerning the incarnation. But the basic principles of the oracles, which he says, "You need again a foundation," and so forth. "You need again to be taught something." What to teach? The principles, he says. "The basic principles." The basic principles, he speaks of the incarnation.but the elements of the beginning of words, which he goes on to say, are: "Not again a foundation," and so forth.
For just as we first learn the letters in writing, so also with divine oracles it was necessary to first teach about the incarnation. For these are suitable for the unbelieving and still infant ears. As for philosophizing about the divinity of Christ, it was therefore complete. Do you see the reason why it accommodates the humble? Because of the weakness of the listeners, who are not strong enough to receive the perfect things. Therefore, even at the beginning of the Epistle, having briefly philosophized about the divinity of Christ, he immediately ceased his discourse. The Epistle is indeed filled with the humble.

"And you have become in need." He did not say that you have a need, but that you yourselves have become such, that is, you have made yourselves so out of laziness, not being such by nature.
"Of milk and not solid food." He refers to the humble sayings about Christ as milk, those concerning the flesh; but solid food refers to the perfect ones concerning his divinity.
To those who are still infants, faith is seen in humble words, (for milk is suitable for infants), but to the perfect, faith is in solid food and the high thinking concerning Christ.
"For everyone who lives on milk." For everyone, he says, who partakes of humble words, concerning the humanity of the Lord, (for these are the milk), is unskilled and lacks the word of righteousness.
And he speaks of the word of righteousness, which concerns the divinity of the Lord. "solid food." The lofty word, and the high doctrines concerning Christ.
"by constant practice." He refers to habit, perfection, the well-trained, having their senses exercised, such as hearing, tongue, eyes. Indeed, he speaks of the senses of the soul.
To distinguish, he says, what is good, and high doctrines, and what are the spurious and corrupt. He hints at those who teach anything to everyone, giving themselves and being persuaded. For he who receives everything simply, has indiscriminately both good and evil.

“the laying on of hands.” Those things that take place in baptism; or there, when the apostles laid on their hands, they gave the Spirit, which Simon the sorcerer also sought. (Acts 8:18-19)
“the resurrection of the dead.” For this also takes place in baptism through the form of rising up, and is confirmed in the confession; for we confess that we believe in the resurrection of the dead.
“and eternal judgment.” That is, of the coming judgment, which grants either eternal good or punishment. This seems to say: since it was likely that they would be shaken, although they had already believed, either that if we live deeply, or fall away from faith, we shall be baptized again, or again be able to wash away sins, and to share in the same things as before. For they err in thinking these things.
"And this we will do." Which? To be carried to perfection.
"if God permits." The phrase "if God permits" is not to indicate that God does not always permit (for God always permits the good and perfect), but as is customary for us to say, If God wills, we will do this. At the same time, it also teaches us from this that everything depends on that will, and we should not rely confidently or arrogantly on our own judgment and power, even in matters generally acknowledged. This is explicitly encouraged by the apostle James.

"on to perfection." Having said this, he lets go of the elementary and foundational teachings concerning Christ and is carried towards perfection, not simply referring to the ultimate perfection, but as if to that which is between the elementary teachings of the words of God and the highest perfection. For there are indeed elementary principles of the words of God, which must be put away from Satan and his works, to believe in God, to be baptized, to receive the Holy Spirit, to know the resurrection of the dead, to believe that there will be a judgment. These are the elementary teachings of the words of God. The fundamentals of the words of God, and not the elementary teachings of God, are to know that Christ suffered for us, that He took upon Himself our sins, that He accomplished salvation for us, that He became our high priest, that He offered Himself for us, and anything similar. The perfection of rejecting Satan and his associates is the progress in virtues, the patience in tribulations, persecutions, and temptations. The highest perfection is that concerning the theology of Christ, insofar as it is possible for a man to have an accurate understanding. First, therefore, we are baptized as believers, then we acknowledge all that Christ suffered and did for us according to His humanity, then we are perfected in the virtues, and afterward we are deemed worthy of the knowledge according to theology.

"of faith toward God." For it is not necessary now, as it was from the beginning, to believe in God. For you have already believed through teaching. The structure is thus. Therefore, leaving the elementary of God, what is this? The doctrine of baptisms, the laying on of hands (by which, it says, you were enlightened), and the resurrection of the dead, and eternal judgment, let us press on to perfection. For it is not necessary, it says, always to speak the same things; for it has been said once and has come to pass, but it is necessary, it says, also to contribute what is among you, namely, a good conduct and a faith worthy of it. For this is perfection, to be two-handed in virtue, as it were, saying; Be sober; for there is no need to live carelessly, and again to be baptized, and through the laying on of hands to receive the Holy Spirit's visitation.
“of instruction about baptism.” Not as if there were many baptisms, Paul said this in the plural; for there is one baptism (Eph. 4:5); but this follows from the context. For if he were to instruct them again, and baptize them again; and again baptize those who have fallen away; then necessarily there would be many baptisms; but this is absurd. Therefore, it is not necessary to rebaptize you; but to remain with the former baptism.