1 Samuel 13:10-12

Just as he finished, Samuel arrived, and Saul went to greet him. Samuel asked, “What have you done?” Saul answered, “I saw the soldiers leaving me, and you were not here when you said you would be. The Philistines were gathering at Micmash. Then I thought, ‘The Philistines will come against me at Gilgal, and I haven’t asked for the LORD’s approval.’ So I forced myself to offer the whole burnt offering.”