Acts 21:23-26

23Do therefore this that we say to thee: We have four men who have a vow on them; 24Take them and purify thyself with them, and pay their expenses that they may shave their heads: and all may know that those things, of which they were informed concerning thee, are nothing; but that thou thyself also walkest orderly, and keepest the law. 25As concerning the Gentiles who believe, we have written and concluded that they observe no such thing, except that they keep themselves from things offered to idols, and from blood, and from strangled, and from immorality. 26Then Paul took the men, and the next day purifying himself with them entered into the temple, to signify the accomplishment of the days of purification, until an offering should be offered for every one of them.