'Nazirite' in the Bible

for, behold, you shall conceive, and bear a son; and no razor shall come on his head; for the child shall be a Nazirite to God from the womb: and he shall begin to save Israel out of the hand of the Philistines."

but he said to me, 'Behold, you shall conceive, and bear a son; and now drink no wine nor strong drink, and eat not any unclean thing; for the child shall be a Nazirite to God from the womb to the day of his death.'"

He 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."