Acts 26:20

But first to them at Damascus and at Jerusalem, and through all the country of Judea, and then to the Gentiles I declare, that they should repent and turn to God, doing works worthy of repentance.

James 4:8-9

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