When the Israelites asked God for a king, he appointed Saul as their ruler. Though Saul started out strong, he consistently relied on his own strength and power rather than God's. People followed him, but he didn't follow God and proved time and time again that he didn't trust Him. Because of his rebellion against God, God rejected him as king. Saul's life went into a tailspin, ending badly and becoming an example to us of what happens when you harden your heart toward God.