Numbers 6:3

“So now, be careful not to drink wine or strong drink, nor eat any unclean thing.

“For behold, you shall be with child and give birth to a son, and no razor shall come upon his head, for the boy shall be a Nazirite to God from the womb; and he shall begin to save Israel from the hand of the Philistines.”

But they said, “We will not drink wine, for Jonadab the son of Rechab, our father, commanded us, saying, ‘You shall not drink wine, you or your sons, forever.

“Then I raised up some of your sons to be prophets And some of your choice men to be Nazirites. Is this not so, O sons of Israel?” declares Yahweh.

“For he will be great in the sight of the Lord; and he will not drink any wine or strong drink, and he will be filled with the Holy Spirit while yet in his mother’s womb.

since they relate only to food and drink and various washings, requirements for the body imposed until a time of reformation.