Acts 21:24

Verse 24. Them take. Take with you. Join yourself with them. And purify thyself with them. Join them in observing the forms of purification prescribed by the law of Moses in the observance of the vow of the Nazarite. The purifying here refers to the vows of sanctity which the Nazarites were to observe. They were to abstain from wine and strong drink; they were to eat no grapes, moist or dried; they were to come near no dead body, nor to make themselves "unclean"--for their father, mother, brother, or sister, when they died, Nu 6:3-7; and they were to present an offering when the days of the vow were completed, Nu 6:13-21. And be at charges with them.