1 Chronicles 10:13

13 So Sha'ul died for the transgression he committed against ADONAI, because of the word of ADONAI that he did not keep and because he sought the counsel of a spirit

1 Chronicles 10:13 Meaning and Commentary

1 Chronicles 10:13

So Saul died for his transgression
(See Gill on 1 Samuel 31:13) A violent and dishonourable death, which was suffered on account of the sins he was guilty of:

one was, which he committed against the Lord, even against the word of
the Lord, which he kept not;
both in not staying for Samuel the time appointed, and by sparing the Amalekites whom he was bid to destroy, ( 1 Samuel 13:13 1 Samuel 13:14 ) ( 1 Samuel 15:3 1 Samuel 15:9 )

and also for asking counsel of one that had a familiar spirit, to
inquire of it;
what he should do with respect to engaging in battle with the Philistines, ( 1 Samuel 28:8 1 Samuel 28:15 ) which to do was contrary to an express command of God, ( Leviticus 19:31 ) .

1 Chronicles 10:13 In-Context

11 When everyone in Yavesh-Gil'ad heard all that the P'lishtim had done to Sha'ul,

12 all their warriors set out, took away the body of Sha'ul and the bodies of his sons, brought them to Yavesh, buried their bones under the pistachio tree in Yavesh and fasted seven days.

13 So Sha'ul died for the transgression he committed against ADONAI, because of the word of ADONAI that he did not keep and because he sought the counsel of a spirit

14 instead of consulting ADONAI. Therefore ADONAI put him to death and turned the rulership over to David the son of Yishai.