Numbers 6:3-5

Lexham English Bible

³ he will abstain from wine and fermented drink; he will not drink wine vinegar or vinegar of fermented drink; he will not drink the fruit juice of grapes or eat fresh or dry grapes. ⁴ All the days of his separation^[a] you will not eat from anything that is made from the grapevine, from sour grapes to the skin of grapes.

⁵ “‘All the days of the vow of his separation a razor will not pass over his head. Until fulfilling the days that he separated himself to Yahweh he will be holy and grow long the locks of the hair of his head.