'Razor' in the Bible

because surprise! you're going to conceive and give birth to a son! Don't put a razor to his head, because the young man will be a Nazirite, dedicated to God from inside the womb. He will begin to deliver Israel from domination by the Philistines."

So he finally disclosed everything. He told her, "A razor has never touched my head, because I've been a Nazirite for God before I was born. If I am shaved, then my strength will abandon me and I will become weak like every human being."