1 Samuel 13:11-12 NLT

11 but Samuel said, "What is this you have done?"Saul replied, "I saw my men scattering from me, and you didn't arrive when you said you would, and the Philistines are at Micmash ready for battle.
12 So I said, 'The Philistines are ready to march against us, and I haven't even asked for the LORD's help!' So I felt obliged to offer the burnt offering myself before you came."