Acts 21:17-24

And when we were come to Jerusalem, the brethren received us gladly. And the day following Paul went in with us unto James; and all the elders were present. And when he had saluted them, he rehearsed one by one the things which God had wrought among the Gentiles through his ministry. And they, when they heard it, glorified God; and they said unto him, Thou seest, brother, how many thousands there are among the Jews of them that have believed; and they are all zealous for the law: and they have been informed concerning thee, that thou teachest all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children, neither to walk after the customs. What is it therefore? they will certainly hear that thou art come. Do therefore this that we say to thee: We have four men that have a vow on them; these take, and purify thyself with them, and be at charges for them, that they may shave their heads: and all shall know that there is no truth in the things whereof they have been informed concerning thee; but that thou thyself also walkest orderly, keeping the law.