Amen

Amen is a Hebrew word meaning firm, certain, or faithful, derived from the root 'aman (to confirm or support). In liturgical use it functions as a solemn affirmation of a prayer, doxology, or blessing — equivalent to so be it or it is true. The Psalms close three of their five books with doxologies ending in Amen (Pss. 41:13; 72:19; 89:52), and the congregation's Amen in response to Levitical blessings appears in Deuteronomy 27. In synagogue and early church practice, the responsive Amen ratified the public prayer of the leader (1 Cor. 14:16).

Jesus employed Amen in a distinctive way by prefacing his own declarations with Amen I say to you (translated Verily in the Authorized Version), an unprecedented formula asserting personal rather than derived authority. Revelation 3:14 applies the title the Amen to Christ himself, identifying him as the faithful and true witness in whom all of God's promises are confirmed (cf. 2 Cor. 1:20).