(1 Chronicles 10) Did not inquire

So Saul died for his unfaithfulness which he had committed against the Lord, because he did not keep the word of the Lord, and also because he consulted a medium for guidance.  But he did not inquire of the Lord; therefore He killed him, and turned the kingdom over to David the son of Jesse.

But he did not inquire of the Lord.  He was unfaithful because he did not inquire; he did not inquire because he was unfaithful.