1 Samuel 15:10-13 NIV

10 Then the word of the LORD came to Samuel:
11 "I am grieved1 that I have made Saul king, because he has turned2 away from me and has not carried out my instructions."3 Samuel was troubled,4 and he cried out to the LORD all that night.

References for 1 Samuel 15:11

12 Early in the morning Samuel got up and went to meet Saul, but he was told, "Saul has gone to Carmel.5 There he has set up a monument6 in his own honor and has turned and gone on down to Gilgal."

References for 1 Samuel 15:12

13 When Samuel reached him, Saul said, "The LORD bless you! I have carried out the LORD's instructions."