Acts 21:20-21

20 When they heard this, they praised God. Then they spoke to Paul. "Brother," they said, "you see that thousands of Jews have become believers. All of them try very hard to obey the law.

21 They have been told that you teach all the Jews who live among the non-Jews to turn away from Moses. They think that you teach them not to circumcise their children. They think that you teach them to give up our Jewish ways.