Bible Verses About Shaving: Forbidden to Nazarites

"'Throughout the period of his vow as a nazir, he is not to shave his head. Until the end of the time for which he has consecrated himself to ADONAI he is to be holy: he is to let the hair on his head grow long.

For indeed you will conceive and bear a son. No razor is to touch his head, because the child will be a nazir for God from the womb. Moreover, he will begin to rescue Isra'el from the power of the P'lishtim."