'Repentance' in the Bible

And he came into all the region round about the Jordan, preaching the baptism of repentance unto remission of sins;

Bring forth therefore fruits worthy of repentance, and begin not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.

I am not come to call the righteous but sinners to repentance.

I say unto you, that even so there shall be joy in heaven over one sinner that repenteth, more than over ninety and nine righteous persons, who need no repentance.

and that repentance and remission of sins should be preached in his name unto all the nations, beginning from Jerusalem.