'Nazirite' in the Bible

For behold, you shall conceive and give birth to a son. No razor shall come upon his head, for the boy shall be a Nazirite [dedicated] to God from birth; and he shall begin to rescue Israel from the hands of the Philistines.”

But He said to me, ‘Behold, you shall conceive and give birth to a son, and now you shall not drink wine or [any other] intoxicating drink, nor eat anything [ceremonially] unclean, for the boy shall be a Nazirite to God from birth to the day of his death.’”

Then [finally] he told her everything that was in his heart and said to her, “A razor has never been used on my head, for I have been a Nazirite to God from my mother’s womb. If I am shaved, then my strength will leave me, and I will become weak and be like any [other] man.”