1 Chronicles 10:13-14 – So Saul died for his breach of faith. He broke faith with the LORD in that he did not keep the command of the LORD, and also consulted a medium, seeking guidance. He did not seek guidance from the LORD. Therefore the LORD put him to death and turned the kingdom over to David the son of Jesse.
Why did King Saul die? Among the reasons is this: He did not seek guidance from the Lord, instead he sought a medium to ask advice of Samuel. But notice the other account in 1 Samuel 28.
1 Samuel 28:5-7 – When Saul saw the army of the Philistines, he was afraid, and his heart trembled greatly. And when Saul inquired of the LORD, the LORD did not answer him, either by dreams, or by Urim, or by prophets. Then Saul said to his servants, “Seek out for me a woman who is a medium, that I may go to her and inquire of her.” And his servants said to him, “Behold, there is a medium at En-dor.”
Samuel’s account says that Saul did inquire of the Lord, but God didn’t answer him. So is there a contradiction here? Did King Saul inquire of God? Yes Saul tried to ask God, but he really didn’t want a relationship with God. He didn’t want to repent, he was just scared of being killed by the Philistines. So when he “inquired” he wasn’t really humbly coming before God’s throne.
God knows the difference. If Saul truly would have had a repentant heart before God, there are oodles of examples in Scripture where God would have forgiven him and heard Saul’s prayers.