A garrison is a military unit stationed in a fortified place to hold it against attack. Scripture uses the same picture for the peace of God watching over the believer’s soul: "And the peace of God, which passeth all understanding, shall keep [Greek phrourēsei, "shall garrison"] your hearts and minds through Christ Jesus" (Philippians 4:7). The Greek verb is a military term — to stand guard, to garrison a city against attack. God’s peace is not a soft soothing feeling; it is an armed sentry posted at the gate of heart and mind, repelling the assaults of anxiety. Peter uses the same verb of the believer himself: "who are kept [garrisoned] by the power of God through faith" (1 Peter 1:5).
A body of troops stationed in a fortified place; the place itself when held by such troops.
GARRISON, n. A body of troops stationed in a fort or fortified town to defend it against an enemy.
Philippians 4:7 uses phroureō (to garrison) for what the peace of God does around the saint's heart and mind — standing guard at the gates.
Philippians 4:7 — "And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus."
1 Peter 1:5 — "Who are kept by the power of God through faith unto salvation."
1 Samuel 13:23 — "And the garrison of the Philistines went out to the passage of Michmash."
Galatians 3:23 — "But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed."
Modern devotional language softens Philippians 4:7; the Greek is military — the peace of God is a garrison around the saint's heart.
Phroureō is a sentry-verb. The peace of God does not merely visit; it stands guard. The saint's heart and mind are positively defended by the Spirit's posted peace.
Recover this and Philippians 4:7 stops sounding sentimental: the peace of God is an active garrison, not a passive blessing. Pray for the peace of God to garrison your home, your marriage, your watch.
Greek phroureō is the military verb behind keep in Phil 4:7.
Greek phroureō — to garrison, guard, keep watch; from phrouros, sentry.
Note: same verb in 1 Pet 1:5 of believers kept by the power of God.
"The peace of God garrisons the saint's heart; do not soften the Greek."
"Pray peace as a posted sentry, not a passing visitor."
"Phroureō stands guard; the saint sleeps."