You will keep whoever’s mind is steadfast in perfect peace, because he trusts in you.
⛓ Read Isaiah 26 forward — the whole chapter and its afterlife →Where this passage surfaces again, sorted by the strength of the link. Each kind of reuse — formal quotation, deliberate allusion, faint echo, figural pattern — carries its own mark. Follow any reference to read it in place.
Allusion1
A deliberate verbal borrowing without a citation formula.
'You keep him in perfect peace whose mind is stayed on you' parallels Paul's 'peace of God which surpasses all understanding will guard your hearts,' linking divine peace, the mind, and protective keeping. Coherence is strong on the guarding-peace-of-the-mind motif; volume is moderate because Paul does not quote the phrasing verbatim.
Medium confidenceEcho2
A fainter, low-volume reuse, carried by recurrence or thematic coherence.
'You keep him in perfect peace whose mind is stayed on you,' linking peace with an untroubled, trusting heart, parallels 14:27's 'my peace I give... let not your heart be troubled.' Coherence is strong between the peace-and-undisturbed-heart pairing; medium because the connection is thematic rather than a verbal citation.
Medium confidence'The God of peace will be with you' continues the divine-peace motif of v.7 and resonates with Isaiah's promise that God keeps in peace those whose minds are fixed on him. Volume is faint here and the title 'God of peace' is Paul's own, so this is a low-grade continuation echo of the peace tradition.
Low confidence