4 Bible Verses about Apostasy Of Saul

But Samuel said to Saul, “I will not return with you; for you have rejected the word of the Lord, and the Lord has rejected you from being king over Israel.” As Samuel turned to go, Saul seized the edge of his robe, and it tore. So Samuel said to him, “The Lord has torn the kingdom of Israel from you today and has given it to your neighbor, who is better than you.read more.
Also the Glory of Israel will not lie or change His mind; for He is not a man that He should change His mind.”

Now Saul was afraid of David, for the Lord was with him but had departed from Saul.

Then Samuel said to Saul, “Why have you disturbed me by bringing me up?” And Saul answered, “I am greatly distressed; for the Philistines are waging war against me, and God has departed from me and no longer answers me, either through prophets or by dreams; therefore I have called you, that you may make known to me what I should do.”

As you did not obey the Lord and did not execute His fierce wrath on Amalek, so the Lord has done this thing to you this day.