Adam Clarke on 1 Samuel 9:7

There is not a present to bring to the man of God - We are not to suppose from this that the prophets took money to predict future events: Saul only refers to an invariable custom, that no man approached a superior without a present of some kind or other. We have often seen this before; even God, who needs nothing, would not that his people should approach him with empty hands. "It is very common in Bengal for a person, who is desirous of asking a favor from a superior, to take a present of fruits or sweetmeats in his hand. If not accepted, the feelings of the offerer are greatly wounded. The making of presents to appease a superior is also very common in Bengal." - Ward's Customs.