Samuel said to Saul; as the devil appeared in Samuel's shape and garb, so also he speaketh in his person, that he might insnare Saul, and encourage others to seek to him in this wicked way. And God permits him to do so for Saul's greater condemnation and punishment. Neither by prophets, nor by dreams; he omitteth the Urim here, because he neither did nor could inquire by that, because Abiathar had carried it away to David, and so he expected no answer that way.
Related Commentaries of 1 Samuel 28:15
1 Samuel 28:15
15 And Samuel said to Saul, Why hast thou disquieted me, to bring me up? And Saul answered, I am sore distressed; for the Philistines make war against me, and God is departed from me, and answereth me no more, neither by prophets,a nor by dreams: therefore I have called thee, that thou mayest make known unto me what I shall do.