Numbers 6:2-5

2‘Tell the Israelites this: “A man or a woman may want to make a special promise to the Lord. That will make him or her separate from other people, as a Nazirite.

3They must not drink wine. They must not drink any alcohol or vinegar. They must not drink the juice of grapes, or eat grapes or raisins.

4They must not eat the seeds of grapes for all the time that they are Nazirites. They must not even eat the skins of grapes.

5A person must not cut his hair during the time that he is a Nazirite. He must be different all the time that he is separate for the Lord. He must let the hair on his head grow long.