Where it appears

• Judg 13:5for, behold, you shall conceive, and give birth to a son. No razor shall come on his head; for the child shall be a Nazirite to God from the womb. He shall begin to save Israel out of the hand of the Philistines.”
• Judg 16:17He told her all his heart, and said to her, “No razor has ever come on my head; for I have been a Nazirite to God from my mother’s womb. If I am shaved, then my strength will go from me, and I will become weak, and be like any other man.”
• 1 Sam 1:11She vowed a vow, and said, “Yahweh of Armies, if you will indeed look at the affliction of your servant, and remember me, and not forget your servant, but will give to your servant a boy, then I will give him to Yahweh all the days of his life, and no razor shall come on his head.”