1 Samuel 20:21-22

21Then I will send a servant and say, ‘Go and find the arrows! ’ Now, if I expressly say to the servant, ‘Look, the arrows are on this side of you — get them,’ then come, because as the Lord lives, it is safe for you and there is no problem.

22But if I say this to the youth, ‘Look, the arrows are beyond you! ’ then go, for the Lord is sending you away.