Judges 13:1, 5

Again the Israelites did evil in the eyes of the LORD, so the LORD delivered them into the hands of the Philistines for forty years.

You will become pregnant and have a son whose head is never to be touched by a razor because the boy is to be a Nazirite, dedicated to God from the womb. He will take the lead in delivering Israel from the hands of the Philistines.”