And Joshua came upon them suddenly; he went up from Gilgal all night.

This book of the law shall not depart from thy mouth; and thou shalt meditate upon it day and night, that thou mayest take heed to do according to all that is written therein; for then shalt thou have good success in thy ways, and then shalt thou prosper.

And Joshua arose, and all the people of war, to go up to Ai. And Joshua chose thirty thousand valiant men, and sent them away by night.