### Core Meaning & Semantic Range
The Greek word κῦμα (kŷma), transliterated as *kŷma*, derives from a root suggesting swelling, bending, or curving. Its core meaning is "a billow" or "a wave," specifically one that is dynamic—swelling, bursting, or toppling. It captures the powerful and often turbulent movement of water, particularly in the context of a sea. The semantic range of κῦμα is quite focused, primarily referring to the physical phenomenon of a wave, though its New Testament occurrences extend to significant metaphorical usage.
### Biblical Occurrences & Contextual Analysis
The term κῦμα appears only twice in the New Testament, yet each instance carries profound contextual and theological weight:
* **[[Matthew 8:24]]**: "And behold, a great tempest arose on the sea, so that the boat was covered with the **waves**; but He was asleep." Here, κῦμα describes the literal, formidable waves that threatened to engulf the disciples' boat during a violent storm on the Sea of Galilee. The context highlights the disciples' fear and sense of helplessness in the face of overwhelming natural forces, setting the stage for Jesus' miraculous demonstration of authority over creation. The "waves" are not merely a backdrop but an active antagonist, emphasizing the danger and the extraordinary power of Jesus' subsequent command to the wind and sea.
* **[[Jude 1:13]]**: "Raging **waves** of the sea, foaming out their own shame; wandering stars, to whom is reserved the blackness of darkness forever." In this passage, κῦμα is employed metaphorically. The false teachers and ungodly individuals within the community are likened to "raging waves." This vivid imagery conveys their restless, unstable, and destructive nature. Just as waves crash upon the shore, churn up debris, and recede, these individuals are depicted as disruptive forces, constantly in motion but ultimately without substance or true direction, revealing their spiritual defilement ("foaming out their own shame"). The metaphor underscores their lack of spiritual anchor and their harmful influence on the church.
### Related Words & Concepts
Understanding κῦμα is enhanced by considering related Greek terms and concepts:
* **θάλασσα (thalassa) `{{G2281}}`**: The "sea" itself, the body of water upon which the waves move.
* **λαῖλαψ (lailaps) `{{G2978}}`**: A "hurricane," "tempest," or "squall," referring to the violent storm that generates the waves.
* **ἄνεμος (anemos) `{{G417}}`**: "Wind," the force that drives the waves.
* **πλοῖον (ploion) `{{G4143}}`**: "Boat," the vessel often imperiled by waves.
* **Concepts**:
* **Chaos and Disorder**: In ancient cosmology, the sea often represented untamed, chaotic forces, contrasting with God's ordered creation. The waves embody this wildness.
* **Instability and Restlessness**: The constant motion of waves can symbolize a lack of steadfastness, spiritual wandering, or a restless spirit, as seen in Jude's metaphor.
* **Divine Sovereignty**: The ability to control or calm the waves signifies ultimate power and authority, particularly divine power.
### Theological Significance
The theological significance of κῦμα is profound, especially given its limited but impactful use:
* **Christ's Divine Authority and Lordship over Creation**: The primary theological implication arises from [[Matthew 8:24-27]]. Jesus' command to the "wind and the sea" to "be still" (σῐγάω, *sigao* `{{G4601}}`, and φῐμόω, *phimoo* `{{G5392}}`) directly addresses the threatening κῦμα. This act is not merely a miracle but a powerful revelation of His divine identity. Only God, the Creator, has such authority over the natural elements. The calming of the waves demonstrates that Jesus possesses sovereignty over chaos, fear, and even death, affirming His unique status as the Son of God. It signifies His ability to bring peace not only to the physical world but also to the tumultuous storms of human life and spirit.
* **Spiritual Instability, Deception, and Judgment**: In [[Jude 1:13]], the metaphorical use of "raging waves" serves as a severe theological warning. The false teachers, characterized by their instability and lack of truth, are depicted as destructive forces that disrupt the purity and peace of the church. Their "foaming out their own shame" suggests that their actions and teachings ultimately reveal their inner corruption and moral depravity. This imagery underscores the dangers of spiritual deception and the need for believers to be grounded in steadfast faith, contrasting the restless, destructive nature of these individuals with the firm foundation found in Christ. The ultimate destiny of these "raging waves"—"the blackness of darkness forever"—highlights God's righteous judgment against those who sow discord and lead others astray.
### Summary
The Greek word κῦμα (kŷma), meaning "wave" or "billow," though appearing only twice in the New Testament, carries significant theological weight. In [[Matthew 8:24]], it describes the literal, threatening waves of a storm that Jesus miraculously calms, profoundly demonstrating His divine authority over creation and His power to bring peace to chaos. This event underscores Christ's unique lordship and His ability to command even the most formidable natural forces. In [[Jude 1:13]], κῦμα is used metaphorically to depict false teachers as "raging waves of the sea," emphasizing their restless, destructive, and spiritually defiling nature. This imagery serves as a stark warning against spiritual instability and deception, highlighting the ultimate emptiness and judgment awaiting those who disrupt the truth. Across its uses, κῦμα powerfully illustrates themes of divine sovereignty, human vulnerability in the face of overwhelming forces, and the critical importance of spiritual steadfastness amidst the storms of life and the dangers of false teaching.