Judges 16:16-17

And it came to pass, when she pressed him daily with her words, and urged him, that his soul was vexed unto death. And he told her all his heart, and said unto her, There hath not come a razor upon my head; for I have been a Nazirite unto God from my mother’s womb: if I be shaven, then my strength will go from me, and I shall become weak, and be like any other man.