Acts 2:38

Then Peter said to them, "Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit."

Acts 17:30

Truly, these times of ignorance God overlooked, but now commands all men everywhere to repent.

Luke 13:1-3

There were present at that season some who told Him about the Galileans whose blood Pilate had mengled with their sacrifices. And Jesus answered and said to them, "Do you suppose that these Galileans were worse sinners than all other Galileans, because they suffered such things? I tell you, no; but unless you repent, you will all likewise perish."