1 Samuel 17:20

17:20 So David got up early in the morning and entrusted the flock to someone else who would watch over it. After loading up, he went just as Jesse had instructed him. He arrived at the camp as the army was going out to the battle lines shouting its battle cry.

1 Samuel 20:29

20:29 He said, ‘Permit me to go, for we are having a family sacrifice in the city, and my brother urged me to be there. So now, if I have found favor with you, let me go to see my brothers.’ For that reason he has not come to the king’s table.”