Acts of the Apostles

[...] Take them, and purify yourself with them, and pay their expenses for them, that they may shave their heads. Then all will know that there is no truth in the things that they have been informed about you, but that you yourself also walk keeping the law. [...]

Acts of the Apostles: chapter 21, verse 24

Chapter 11, verse 23

²³ who, when he had come, and had seen the grace of God, was glad. He exhorted them all, that with purpose of heart they should remain near to the Lord.