Acts 26:20

but preached first to those at Damascus, and Jerusalem, and to all the region of Judea, and to the Gentiles, that they should repent and turn to God, practicing works worthy of repentance.

James 4:8-9

Draw nigh to God, and he will draw nigh to you. Make clean your hands, ye sinners; and purify your hearts, ye double-minded.

Treasury of Scripture Knowledge

Summary

Therefore also now, saith the LORD, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning:

With fasting

Bible References

With fasting

James 4:8
Draw nigh to God, and he will draw nigh to you. Make clean your hands, ye sinners; and purify your hearts, ye double-minded.