Judges 13:4-5

Therefore, be careful not to drink wine or [any other] intoxicating drink, and do not eat anything [ceremonially] unclean. 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.”