Strong’s G5438: From phylasso; a guarding or guard, act of keeping watch; by extension, a prison cell or period of time. Primarily denotes the act of watching or guarding, secondarily refers to the place of confinement. Reflects both protective custody and punitive imprisonment in ancient culture.

U- Unveiling the Word

φυλακή embodies both the concept of watchful protection and imprisonment, revealing a fascinating duality in its New Testament usage. Its primary meaning centers on the act of keeping watch, often during night hours, demonstrating vigilance and protective custody. The secondary meaning evolved to represent the physical place of confinement or prison. In early church usage, this term gained particular significance as Christians faced imprisonment for their faith, transforming the concept from mere confinement to a place of spiritual testing and witness. Today, this word continues to resonate in discussions of spiritual vigilance and persecution, reminding believers of both the need for spiritual watchfulness and the potential cost of discipleship.

N – Necessary Information

• Greek Word: φυλακή, phylake, /foo-lak-AY/
• Detailed pronunciation: foo (as in “food”) + lak (as in “lock”) + AY (as in “day”)
• Part of Speech: Noun

Etymology:

• Root: φυλάσσω (phylasso) – to guard or watch
• Suffix: -κή (-ke) – forms abstract nouns denoting action or result

D – Defining Meanings

• Act of watching or guarding
• Prison, place of confinement
• Watch (division of night time)
• State of being guarded

For compound words: Not a compound word

Translation Options:

• “prison” – emphasizes the physical place of confinement
• “watch” – captures the temporal aspect and act of guarding
• “guard post” – combines location with function

E – Exploring Similar Words

• τήρησις (teresis) /tay-ray-sis/ – custody, preservation See G5084
• δεσμωτήριον (desmoterion) /des-mo-tay-ree-on/ – prison, specifically binding place See G1201
• φρουρά (phroura) /froo-rah/ – garrison, military guard See G5432

R – Reviewing the Word’s Morphology

Noun Features:

• Case: Varies (Nominative, Genitive, Dative, Accusative)
• Number: Singular and Plural
• Gender: Feminine
• Declension: First declension

Example morphological changes:

• Nominative singular: φυλακή
• Genitive singular: φυλακῆς
• Accusative plural: φυλακάς

Cross-references:

• Verb form: φυλάσσω (to guard)
• Adjective form: φυλακτικός (watchful)

S – Studying Lexicon Insights

The rich semantic range of φυλακή is evidenced across major lexicons. BDAG emphasizes its development from the act of guarding to the place of custody. Thayer’s highlights its temporal usage in dividing night watches. LSJ provides extensive classical usage examples showing its evolution from military contexts. Vine’s notes its metaphorical applications in spiritual vigilance. Strong’s connects it to the concept of preservation. LEH draws parallels with Septuagint usage, while Moulton and Milligan provide papyrological evidence of its use in administrative and legal contexts, showing its integration into everyday Koine Greek.

T – Tracing the Scriptures

First appearance:

“Agree with your adversary quickly, while you are on the way with him, lest your adversary deliver you to the judge, the judge hand you over to the officer, and you be thrown into [φυλακή] prison.” Matthew 5:25

Additional References:
Matthew 14:3, Luke 12:38, Acts 5:19, Acts 12:5, 2 Corinthians 11:23, 1 Peter 3:19

A – Analyzing Classical Usage

N – Noteworthy Summary

φυλακή represents more than just imprisonment or watching; it embodies the tension between constraint and protection in Christian experience. Its dual meaning of both guard and prison powerfully illustrates how persecution can become protection, and confinement can lead to liberation through Christ. This word reminds us that even in places of apparent restriction, God’s protective watch remains. The good news shines through as we realize that Christ himself entered the φυλακή of death to liberate captives, transforming places of confinement into opportunities for witness and spiritual growth.

D – Did You Know?

1. φυλακή was used to designate the four watches of the night in Roman military terminology
2. The word appears in ancient papyri receipts for prison rations
3. Early Christians repurposed prison cells (φυλακή) as impromptu churches during persecution

Strong’s G5438: From phylasso; a guarding or guard, act of keeping watch; by extension, a prison cell or period of time. Primarily denotes the act of watching or guarding, secondarily refers to the place of confinement. Reflects both protective custody and punitive imprisonment in ancient culture.

Part of speech: Noun

Tags: prison, guard, watch, confinement, protection, vigilance, persecution, night-watch, custody, imprisonment