Judges 16
17 Ref And opening all his heart to her, he said to her, My head has never been touched by a blade, for I have been separate to God from the day of my birth: if my hair is cut off, then my strength will go from me and I will become feeble, and will be like any other man.
18 Ref And when Delilah saw that he had let her see into his heart, she sent word to the chiefs of the Philistines saying, Come up this time, for he has let out all his heart to me. Then the chiefs of the Philistines came to her, with the money in their hands.
19 Ref And she made him go to sleep on her knees; and she sent for a man and had his seven twists of hair cut off; and while it was being done he became feeble and his strength went from him.