Acts 26:20

On the contrary, first to those at Damascus and Jerusalem, and then through the whole of Judea, and to the Gentiles as well, I began to preach repentance and conversion to God, and a life befitting that repentance.

James 4:8-9

Draw near to God, and he will draw near to you. Make your hands clean, you sinners; and your hearts pure, you vacillating men!

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 near to God, and he will draw near to you. Make your hands clean, you sinners; and your hearts pure, you vacillating men!