1 Samuel 15:32-36

Then Samuel said, “Bring me Agag, the king of the Amalekites.” And Agag came to him cheerfully. And Agag said, “Surely the bitterness of death is gone!”

But Samuel said, “As your sword has made women childless, so shall your mother be childless among women.” And Samuel cut Agag to pieces before the Lord at Gilgal.

Then Samuel went to Ramah, but Saul went up to his house at Gibeah of Saul.

And Samuel did not see Saul again until the day of his death, though Samuel mourned for Saul. And the Lord regretted that He had made Saul king over Israel.