'Razor' in the Bible

for, lo, thou art conceiving and bearing a son, and a razor doth not go up on his head, for a Nazarite to God is the youth from the womb, and he doth begin to save Israel out of the hand of the Philistines.'

that he declareth to her all his heart, and saith to her, 'A razor hath not gone up on my head, for a Nazarite to God I am from the womb of my mother; if I have been shaven, then hath my power turned aside from me, and I have been weak, and have been as any of the human race.'