Ezra 8:21-23

21Then I proclaimed a fast there, at the river Ahava, that we might humble ourselves before our God, to seek of him a straight way, for us, and for our little ones, and for all our substance.

22For I was ashamed to ask of the king a band of soldiers and horsemen to help us against the enemy in the way: because we had spoken unto the king, saying, The hand of our God is upon all them that seek him, for good; but his power and his wrath is against all them that forsake him.

23So we fasted and besought our God for this: and he was entreated of us.