Acts 15:5

But some members of the Pharisees' party who had become believers got up and said that such converts ought to be circumcised and told to obey the Law of Moses.

Acts 15:1

Some people came down from Judea and began to teach the brothers that unless they were circumcised as Moses prescribed, they could not be saved.

Acts 15:24

As we have heard that some of our number, without any instructions from us, have disturbed you by their teaching and unsettled your minds,

Acts 21:20

They praised God when they heard it, and they said to him, "You see, brother, how many thousand believers there are among the Jews, all of them zealous upholders of the Law.

Acts 24:5

For we have found this man a pest and a disturber of the peace among Jews all over the world. He is a ringleader of the Nazarene sect,

Acts 26:5-6

for they have known from the first, if they are willing to give evidence, that I was a Pharisee and my life was that of the strictest sect of our religion.

Galatians 5:1-3

This is the freedom with which Christ has freed us. So stand firm in it, and do not get under a yoke of slavery again.

Philippians 3:5-8

I was circumcised when I was eight days old. I am a descendant of Israel. I belong to the tribe of Benjamin. I am a Hebrew, and the son of Hebrews. As to the Law, I was a Pharisee;

Treasury of Scripture Knowledge

Summary

But there rose up certain of the sect of the Pharisees which believed, saying, That it was needful to circumcise them, and to command them to keep the law of Moses.

Bible References

That it

Acts 15:1
Some people came down from Judea and began to teach the brothers that unless they were circumcised as Moses prescribed, they could not be saved.
Galatians 5:1
This is the freedom with which Christ has freed us. So stand firm in it, and do not get under a yoke of slavery again.