I Samuel 28:1-7, 15-20

Now it happened in those days that the Philistines gathered their armies together for war, to fight with Israel. And Achish said to David, “You assuredly know that you will go out with me to battle, you and your men.” So David said to Achish, “Surely you know what your servant can do.” And Achish said to David, “Therefore I will make you one of my chief guardians forever.” Now Samuel had died, and all Israel had lamented for him and buried him in Ramah, in his own city. And Saul had put the mediums and the spiritists out of the land. Then the Philistines gathered together, and came and encamped at Shunem. So Saul gathered all Israel together, and they encamped at Gilboa. When Saul saw the army of the Philistines, he was afraid, and his heart trembled greatly. And when Saul inquired of the LORD, the LORD did not answer him, either by dreams or by Urim or by the prophets. Then Saul said to his servants, “Find me a woman who is a medium, that I may go to her and inquire of her.” And his servants said to him, “In fact, there is a woman who is a medium at En Dor.”

Now Samuel said to Saul, “Why have you disturbed me by bringing me up?” And Saul answered, “I am deeply distressed; for the Philistines make war against me, and God has departed from me and does not answer me anymore, neither by prophets nor by dreams. Therefore I have called you, that you may reveal to me what I should do.” Then Samuel said: “So why do you ask me, seeing the LORD has departed from you and has become your enemy? And the LORD has done for Himself as He spoke by me. For the LORD has torn the kingdom out of your hand and given it to your neighbor, David. Because you did not obey the voice of the LORD nor execute His fierce wrath upon Amalek, therefore the LORD has done this thing to you this day. Moreover the LORD will also deliver Israel with you into the hand of the Philistines. And tomorrow you and your sons will be with me. The LORD will also deliver the army of Israel into the hand of the Philistines.” Immediately Saul fell full length on the ground, and was dreadfully afraid because of the words of Samuel. And there was no strength in him, for he had eaten no food all day or all night.