Matthew 3:2
And saying, Repent you: for the kingdom of heaven is at hand.
Nave's Topical Index—AKJV

Mark 1:4,15
John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.
Nave's Topical Index—AKJV

Luke 3:3
And he came into all the country about Jordan, preaching the baptism of repentance for the remission of sins;
Nave's Topical Index—AKJV