Galatians 2:14

But when I saw that they were not walking a straight path, in the presence of the truth of the gospel, I said to Cephas before them all. "If you, although you are a Jew, live like the Gentiles and not like the Jews, why do you try to compel the Gentiles to become Jews?

Galatians 2:5

To them we did not yield submission even for an hour, in order that the truth of the gospel might abide unshaken among you.

Acts 10:28

To them he said: "You know, yourselves, that it is illegal for a Jew to associate with or to visit one of another nation; but God has taught me that I should not call any man common or unclean. For this reason, when sent for, I came without demur.

1 Timothy 5:20

Rebuke offenders publicly, so that others also may take warning.

Acts 11:3-18

saying, "You went into the houses of the uncircumcised and ate with them!"

Acts 15:10-11

"Now then, why are you tempting God by laying on the necks of these disciples a yoke which neither our forefathers nor we have been able to bear?

Acts 15:19-21

"My judgment therefore, is against troubling those who turn to God from among the Gentiles;

Acts 15:24

"as we have heard that some of your number who went out from us have troubled you with words and upset your souls, without having received any such instruction from us;

Acts 15:28-29

"For it has seemed good to the Holy Ghost and to us, to lay upon you no greater burden than these necessary things;

Romans 14:14

I know and am persuaded in the Lord Jesus that nothing is in itself unclean; but any food is "unclean" for one who considers it "unclean."

Galatians 2:3

But although Titus, my companion, was a Greek, they did not compel even him to be circumcised.

Galatians 2:7

On the contrary, when they saw that I had been entrusted with the gospel for the uncircumcised, just as Peter has with the gospel for the circumcised

Galatians 2:9

and when they recognized the grace which had been given to me, James and Cephas and John, then thought to be pillars, gave to Barnabas and to me the right hand of fellowship. They agreed that we should go to the Gentiles and they to the Jews.

Galatians 2:11-13

But when Cephas came to Antioch I resisted him to his face, because he stood self-condemned.

Galatians 6:12

Those who are trying to compel you to be circumcised are such as wish to make a fair show in the flesh, only that they may not suffer persecution for the cross of Christ.

1 Timothy 4:3-5

who discourage marriage, and enjoin abstinence from foods which God created to be received with thankfulness, by those who believe, and have a clear knowledge of the truth.

Hebrews 9:10

since they consist only in meats and drinks and various ablutions, carnal ordinances, imposed until the time of reformation.

Hebrews 12:13

make straight path for your feet, so that what is lame may not be put out of joint, but rather be healed.

Treasury of Scripture Knowledge

Summary

But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews?

General references

Bible References

The truth

Galatians 2:5
To them we did not yield submission even for an hour, in order that the truth of the gospel might abide unshaken among you.
Romans 14:14
I know and am persuaded in the Lord Jesus that nothing is in itself unclean; but any food is "unclean" for one who considers it "unclean."
1 Timothy 4:3
who discourage marriage, and enjoin abstinence from foods which God created to be received with thankfulness, by those who believe, and have a clear knowledge of the truth.
Hebrews 9:10
since they consist only in meats and drinks and various ablutions, carnal ordinances, imposed until the time of reformation.

I said

Galatians 2:11
But when Cephas came to Antioch I resisted him to his face, because he stood self-condemned.
1 Timothy 5:20
Rebuke offenders publicly, so that others also may take warning.

If thou

Galatians 2:12
For until certain men came from James he used to eat with the Gentile Christians, but when they came, he began to draw back and to separate himself, because he was afraid of the circumcision party.
Acts 10:28
To them he said: "You know, yourselves, that it is illegal for a Jew to associate with or to visit one of another nation; but God has taught me that I should not call any man common or unclean. For this reason, when sent for, I came without demur.
Acts 11:3
saying, "You went into the houses of the uncircumcised and ate with them!"

Why

Galatians 2:3
But although Titus, my companion, was a Greek, they did not compel even him to be circumcised.
Galatians 6:12
Those who are trying to compel you to be circumcised are such as wish to make a fair show in the flesh, only that they may not suffer persecution for the cross of Christ.
Acts 15:10
"Now then, why are you tempting God by laying on the necks of these disciples a yoke which neither our forefathers nor we have been able to bear?

General references

Luke 5:38
"But new wine must be put into fresh wine-skins
Romans 3:30
since there is one God who will justify the circumcised through faith, and by their faith will he justify the uncircumcised.
Galatians 2:18
For if I am rebuilding the very things which I destroyed, I am proving myself a transgressor.