Numbers 6:2-4

New Century Version

² “Tell the Israelites: ‘If men or women want to promise to belong to the Lord in a special way, they will be called Nazirites. ³ During this time, they must not drink wine or beer, or vinegar made from wine or beer. They must not even drink grape juice or eat grapes or raisins. ⁴ While they are Nazirites, they must not eat anything that comes from the grapevine, even the seeds or the skin.