G5432–φρουρέω–phroureō

In Damascus the governor under King Aretas kept guards at the gates of the city in order to apprehend me,

ἐφρούρει ephrourei “was guarding”

Before this faith came, we Jews were perpetual prisoners under the Law, living under restraints and limitations in preparation for the faith which was soon to be revealed.

ἐφρουρούμεθα ephrouroumetha “we were held in custody”

And then the peace of God, which transcends all our powers of thought, will be a garrison to guard your hearts and minds in union with Christ Jesus.

φρουρήσει phrourēsei “will guard”

whom God in His power is guarding through faith for a salvation that even now stands ready for unveiling at the End of the Age.

φρουρουμένους phrouroumenous “[are] being guarded”