Albert Barnes Commentary 1 Samuel 9:7

"Then said Saul to his servant, But, behold, if we go, what shall we bring the man? for the bread is spent in our vessels, and there is not a present to bring to the man of God: what have we?" — 1 Samuel 9:7 (ASV)

Gifts of bread or meat were as common as gifts of money (Hosea 3:2).