Galatians 5:2

Notice, it is I, Paul, who tells you that if you receive circumcision [as a supposed requirement of salvation], Christ will be of no benefit to you [for you will lack the faith in Christ that is necessary for salvation].

Acts 15:1

Some men came down from Judea and began teaching the brothers, “Unless you are circumcised in accordance with the custom of Moses, you cannot be saved.”

2 Corinthians 10:1

Now I, Paul, urge you by the gentleness and graciousness of Christ—I who am meek [so they say] when with you face to face, but bold [outspoken and fearless] toward you when absent!

Galatians 5:6

For [if we are] in Christ Jesus neither circumcision nor uncircumcision means anything, but only faith activated and expressed and working through love.

Acts 15:24

Since we have heard that some of our men have troubled you with their teachings, causing distress and confusion—men to whom we gave no such orders or instructions—

Acts 16:3-4

Paul wanted Timothy to go with him [as a missionary]; and he took him and circumcised him because of the Jews who were in those places, since they all knew that his father was a Greek.

Romans 9:31-32

whereas Israel, [though always] pursuing the law of righteousness, did not succeed in fulfilling the law.

Romans 10:2-3

For I testify about them that they have a certain enthusiasm for God, but not in accordance with [correct and vital] knowledge [about Him and His purposes].

Galatians 2:3-5

But [all went well, for] not even Titus, who was with me, was compelled [as some had anticipated] to be circumcised, despite the fact that he was a Greek.

Galatians 5:3-4

Once more I solemnly affirm to every man who receives circumcision [as a supposed requirement of salvation], that he is under obligation and required to keep the whole Law.

Galatians 5:11

But as for me, brothers, if I am still preaching circumcision [as I had done before I met Christ; and as some accuse me of doing now, as necessary for salvation], why am I still being persecuted [by Jews]? In that case the stumbling block of the cross [to unbelieving Jews] has been abolished.

1 Thessalonians 2:18

For we wanted to come to you—I, Paul, again and again [wanted to come], but Satan hindered us.

Hebrews 4:2

For indeed we have had the good news [of salvation] preached to us, just as the Israelites also [when the good news of the promised land came to them]; but the message they heard did not benefit them, because it was not united with faith [in God] by those who heard.

1 Corinthians 16:21

This greeting is in my own hand—Paul.

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 fresh wineskins.
Galatians 2:3
But [all went well, for] not even Titus, who was with me, was compelled [as some had anticipated] to be circumcised, despite the fact that he was a Greek.
Philippians 3:7
But whatever former things were gains to me [as I thought then], these things [once regarded as advancements in merit] I have come to consider as loss [absolutely worthless] for the sake of Christ [and the purpose which He has given my life].