Samuel turned again after Saul; not to worship the Lord with him, for that he did not; and therefore it is here mentioned that Saul only worshipped the Lord; but for two other reasons: first, that people might not upon pretence of this sentence of rejection immediately withdraw all respect and obedience to their sovereign; whereby they would both have sinned against God, and have been as sheep without a shepherd. Secondly, That he might rectify Saul's error, and execute God's judgment upon Agag.
Related Commentaries of 1 Samuel 15:31
1 Samuel 15:31
31 So Samuel turned again after Saul; and Saul worshipped the LORD.