Saul died because he was unfaithful to the Lord; he did not keep the word of the Lord and even consulted a medium for guidance,

He then said to the whole assembly of Israel, “If it seems good to you and if it is the will of the Lord our God, let us send word far and wide to the rest of our people throughout the territories of Israel, and also to the priests and Levites who are with them in their towns and pasturelands, to come and join us.

And the Levites carried the ark of God with the poles on their shoulders, as Moses had commanded in accordance with the word of the Lord.

But that night the word of God came to Nathan, saying:

Nathan reported to David all the words of this entire revelation.

The king’s word, however, overruled Joab; so Joab left and went throughout Israel and then came back to Jerusalem.

So David went up in obedience to the word that Gad had spoken in the name of the Lord.

But this word of the Lord came to me: ‘You have shed much blood and have fought many wars. You are not to build a house for my Name, because you have shed much blood on the earth in my sight.