Samuel reminds Saul that the Lord sent him to anoint him and passes on a command: punish Amalek for what they did to Israel when it came out of Egypt, destroy it completely with all it has and show no mercy. Saul gathers his army, warns the Kenites to leave and defeats Amalek from Havilah to Shur. But he spares King Agag and the best of the livestock, and destroys only what is despised and worthless.
The Lord tells Samuel that he regrets having made Saul king, because he has turned back from following him and has not kept his commandments. Samuel is angry and cries out to the Lord all night. In the morning he goes to meet Saul, and they tell him that Saul has set up a monument for himself at Carmel. Saul greets him saying he has performed the word of the Lord. Samuel asks what this bleating of sheep and lowing of cattle is that he hears.
Saul says the people spared the best to sacrifice to the Lord. Samuel reminds him that the Lord anointed and sent him, and asks why he did not obey. Saul insists that he did obey and blames the people. Samuel answers that the Lord delights in burnt offerings less than in obedience: to obey is better than sacrifice, and rebellion is like the sin of divination. Because Saul rejected the word of the Lord, the Lord has rejected him as king.
Saul confesses that he has sinned because he feared the people and asks Samuel to return with him to worship. Samuel refuses and turns away; Saul grabs the edge of his robe and it tears. Samuel tells him that thus the Lord has torn the kingdom of Israel from him and given it to a neighbor better than he. Finally Samuel returns with Saul so he can worship, and he himself kills Agag. Samuel goes to Ramah and does not see Saul again until the day of his death, though he mourns for him, and the Lord regrets having made Saul king.