Transliterated directly from Hebrew amen (H543), meaning 'firm,' 'reliable,' 'truly.' Used to confirm truth or affirm agreement. Jesus uniquely prefixed His teachings with 'Amen, amen' ('Truly, truly I say to you'), claiming personal authority to guarantee divine truth.
In the OT, amen was a congregational response — the people's 'yes' to God's word. Jesus transformed it by placing it at the beginning of statements: 'Amen, I say to you...' This was unprecedented — He didn't confirm someone else's truth but declared His own words as self-authenticating divine truth. In Revelation 3:14, Jesus is called 'the Amen, the faithful and true witness.' He doesn't just speak truth; He is the Amen.