Numbers 6:1-3

Young's Literal Translation

6 And Jehovah speaketh unto Moses, saying,

² `Speak unto the sons of Israel, and thou hast said unto them, When a man or woman doeth singularly, by vowing a vow of a Nazarite, to be separate to Jehovah;

³ from wine and strong drink he doth keep separate; vinegar of wine, and vinegar of strong drink he doth not drink, and any juice of grapes he doth not drink, and grapes moist or dry he doth not eat;