Numbers 6:1

1The LORD spoke to Moses, saying,

2“Speak to the children of Israel, and tell them: ‘When either man or woman shall make a special vow, the vow of a Nazirite, to separate himself to the LORD,

3he shall separate himself from wine and strong drink. He shall drink no vinegar of wine, or vinegar of fermented drink, neither shall he drink any juice of grapes, nor eat fresh grapes or dried.