ὕπνος

sleep

Definition

ὕπνος primarily means 'sleep' in the physical, literal sense, as seen when Joseph is told to take Mary as his wife after an angelic message 'from sleep' (Matthew 1:24) and when the disciples were 'heavy with sleep' during the Transfiguration (Luke 9:32). It also carries a figurative meaning of spiritual dullness or moral inactivity. This metaphorical use is prominent in Romans 13:11, where Paul urges believers to wake from 'sleep' because salvation is nearer, contrasting spiritual alertness with the complacency of the old life. In John 11:13, it is used ambiguously, as Jesus speaks of Lazarus's 'sleep,' which the disciples misunderstand as physical rest, but Jesus intends it as a metaphor for death, which He has the power to overcome.

Biblical Usage

The word is used five times in the New Testament across Gospels, Acts, and an Epistle. In the Gospels, it describes literal physical sleep (Matthew 1:24, Luke 9:32) and a metaphorical reference to death (John 11:13). In Acts 20:9, it describes the deep, literal sleep of Eutychus during Paul's long sermon. Its most significant usage is in Romans 13:11, where it is employed metaphorically to exhort Christians to spiritual wakefulness and ethical action, contrasting the 'sleep' of spiritual ignorance and moral passivity with the alertness required by the coming salvation.

Etymology

Derived from the ancient Greek noun ὕπνος (hýpnos), meaning 'sleep.' It is the direct source of English words like 'hypnosis' and 'hypnotic.' The root is Indo-European, connected to Latin 'somnus' and Sanskrit 'svápnaḥ,' all relating to sleep. In Greek literature and the New Testament, the word retained its core meaning but was readily applied in spiritual and metaphorical contexts, a development seen in classical Greek philosophy and poetry as well.

Semantic Range

ὕπνος is theologically significant for its metaphorical use in describing the human spiritual condition. In Romans 13:11, 'sleep' symbolizes a state of spiritual unawareness, moral lethargy, and unpreparedness for the Lord's return and the fullness of salvation. Understanding this Greek term enriches the reading of passages like John 11:11-13, where Jesus' statement about Lazarus 'sleeping' creates a profound theological link between physical death and the hope of resurrection, which Jesus Himself embodies. It calls believers to a state of vigilant, active faith, awake to God's work and the demands of righteous living.

In the ancient Greco-Roman world, sleep was often associated with vulnerability, inactivity, and even a state close to death. The cultural understanding aligns with the biblical usage, where falling asleep during a long discourse (as in Acts 20:9) was a recognizable, if dangerous, occurrence. The metaphorical link between sleep and spiritual/moral dullness was also common in Greek philosophical and Jewish wisdom literature, making Paul's admonition in Romans 13:11 immediately understandable to his original audience as a call to urgent, active engagement with faith and ethics.

καθεύδω (katheudō, G2518) — a verb meaning 'to sleep' or 'to be asleep,' focusing on the action or state of sleeping. κοίμησις (koimēsis, G2838) — a noun meaning 'a resting, sleep,' often used euphemistically for death, as in 'falling asleep.'

Word Details

Scripture References