Acts 21:20-21

20 And they having heard [it] glorified God, and said to him, Thou seest, brother, how many myriads there are of the Jews who have believed, and all are zealous of the law.

21 And they have been informed concerning thee, that thou teachest all the Jews among the nations apostasy from Moses, saying that they should not circumcise their children, nor walk in the customs.