Galatians 5:2

Behold, I Paul say unto you, that if ye be circumcised, Christ will profit you nothing.

Acts 15:1

Now some that came down from Judea, taught the brethren, saying, Except ye be circumcised according to the law of Moses, ye cannot be saved.

2 Corinthians 10:1

Now I Paul myself exhort you, by the meekness and lenity of Christ, who in presence am lowly among you,

Galatians 5:6

For in Christ Jesus neither circumcision availeth any thing, nor uncircumcision, but faith which worketh by love.

Acts 15:24

Forasmuch as we have heard, that some who went out from us, have troubled you by their discourses, unsettling your minds, saying, ye must be circumcised, and keep the law; to whom we gave no such commission;

Acts 16:3-4

wherefore Paul was desirous that he should go forth with him, and took and circumcised him because of the Jews that were in those parts; for they all knew that his father was a Greek.

Romans 9:31-32

but Israel, who followed after the law of righteousness, hath not attained to the law of righteousness: why?

Romans 10:2-3

For I bear them witness that they have a zeal for God, but not according to knowledge.

Galatians 2:3-5

But even Titus, who was with me, being a Greek, was not compelled to be circumcised;

Galatians 5:3-4

And I testify again to every man that is circumcised, that he is a debtor to the whole law.

Galatians 5:11

And I, brethren, if I still preach circumcision, why am I still persecuted by the Jews? for then the offence of the cross is ceased.

1 Thessalonians 2:18

Wherefore we would have come unto you (even I Paul) once and again; but Satan hindered us.

Hebrews 4:2

for we are graciously offered it, as they also were. But the word, which they heard, did not profit them, not being mixed with faith in them that heard it.

1 Corinthians 16:21

The salutation of me Paul I write with my own hand.

Treasury of Scripture Knowledge

Summary

Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing.

Bible References

General references

Luke 5:38
but new wine must be put into new vessels, and then both are saved.
Galatians 2:3
But even Titus, who was with me, being a Greek, was not compelled to be circumcised;
Philippians 3:7
which were once gain to me, I counted loss for Christ.