1 Samuel 28:20 in the King James Version
Then Saul fell straightway all along on the earth, and was sore afraid, because of the words of Samuel: and there was no strength in him; for he had eaten no bread all the day, nor all the night.
Context
19 Moreover the LORD will deliver Israel also with you into the hand of the Philistines; and tomorrow you and your sons will be with me. The LORD will deliver the army of Israel also into the hand of the Philistines.”
20 Then Saul fell immediately his full length on the earth, and was terrified, because of Samuel’s words. There was no strength in him, for he had eaten no bread all day long or all night long.
21 The woman came to Saul and saw that he was very troubled, and said to him, “Behold, your servant has listened to your voice, and I have put my life in my hand, and have listened to your words which you spoke to me.