Reply #12: There is also Numbers 6:1-5

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The LORD said to Moses, "Speak to the Israelites and say to them: If a man or woman wants to make a special vow, a vow of separation to the LORD as a Nazirite, he must abstain from wine and other fermented drink and must not drink vinegar made from wine or from other fermented drink. He must not drink grape juice or eat grapes or raisins.

As long as he is a Nazirite, he must not eat anything that comes from the grapevine, not even the seeds or skins. During the entire period of his vow of separation no razor may be used on his head. He must be holy until the period of his separation to the LORD is over; he must let the hair of his head grow long.

My emphasis.

BTW it may also be that Joshua bar Joseph (Jesus) was a Nazarite rather than a Nazarine