Albert Barnes Commentary 1 Samuel 15:30

"Then he said, I have sinned: yet honor me now, I pray thee, before the elders of my people, and before Israel, and turn again with me, that I may worship Jehovah thy God." — 1 Samuel 15:30 (ASV)

The persistence with which Saul clings to Samuel for support is a striking testimony to Samuel’s integrity. Despite all his worldly-mindedness, Saul could perceive and appreciate the purity of Samuel’s character as a man of God.

The Lord your God - As noted previously in 1 Samuel 15:15.