Numbers 6:3-5

International Standard Version

³ then is to remain separate from wine and strong drink. He is not to drink vinegar or strong drink made from wine. He is not to drink grape juice or eat grapes, whether fresh or dried. ⁴ During the entire time of his dedication, he is not to eat any product from the grapevine, from the seed to the skin. ⁵ During the entire time of his dedication, he is not to allow a razor to pass over his head until the days of his holy consecration to the Lord have been fulfilled. He is to let the locks on his head grow long.