Verses with the word confirm in the New Testament (3 verses):
Now I say that Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises made unto the fathers:
1 Corinthians 1:8
Who shall also confirm you unto the end, that ye may be blameless in the day of our Lord Jesus Christ.
2 Corinthians 2:8
Wherefore I beseech you that ye would confirm your love toward him.