1 Samuel 13:11-15

11But Samuel asked, “What have you done?” Saul replied, “Because I saw that the people were scattering from me, and that you had not come within the appointed days, and that the Philistines were assembling at Michmas,

12I thought: ‘Now the Philistines are about to advance against me at Gilgal, but I have not yet entreated Adonai.’ So I forced myself and offered the burnt offering.”

13Samuel said to Saul, “You have acted foolishly by not keeping the commandment of Adonai your God which He commanded you. For now, Adonai would have established your kingship over Israel forever.

14But now your kingship will not last. Adonai has sought for Himself a man after His own heart. So Adonai will appoint him as ruler over His people—because you have not guarded what Adonai commanded you.”

15Samuel then departed and went up from Gilgal to Gibeah of Benjamin. Then Saul numbered the troops that were with him, about 600 men.