Verses with the word confirmed in the New Testament (6 verses):
And Judas and Silas, being prophets also themselves, exhorted the brethren with many words, and confirmed them.
1 Corinthians 1:6
Even as the testimony of Christ was confirmed in you:
Brethren, I speak after the manner of men; Though it be but a man's covenant, yet if it be confirmed, no man disannulleth, or addeth thereto.
And this I say, that the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot disannul, that it should make the promise of none effect.
How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him;
Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath: