Judges 13:1, 5

Again the children of Israel did evil in the sight of the LORD, and the LORD delivered them into the hand of the Philistines for forty years.

For behold, you shall conceive and bear a son. And no razor shall come upon his head, for the child shall be a Nazirite to God from the womb; and he shall begin to deliver Israel out of the hand of the Philistines.”