Luke 3:3 Then John went from place to place on both sides of the Jordan River, preaching that people should be baptized to show that they had repented of their sins and turned to God to be forgiven.
The word repentance in the Bible literally means “the act of changing one’s mind.” True biblical repentance goes beyond remorse, regret, or feeling bad about one’s sin. It involves more than merely turning away from sin. It requires a deliberate redirection for the future.
The focus of Jesus Christ’s mission was to call sinners to repentance:
“I have come not to call those who think they are righteous, but those who know they are sinners and need to repent” (Luke 5:32).
His call of absolute surrender goes out to all people:
“But unless you repent, you too will all perish.” (Luke 13:5 NIV)
In His farewell to the disciples, Jesus commanded that they take His message of repentance and faith to all the nations when He said
"and repentance for the forgiveness of sin will be preached in his name to all nations, beginning at Jerusalem." (Luke 24:47 NIV)