Circumcision is of value if one keeps the law in the sense that
circumcision can shield one from God’s wrath if one keeps every aspect of the law perfectly; or
circumcision only has spiritual value if one is obedient to God.
Likely Paul means that circumcision is a sign of the covenant, but unless one keeps the law perfectly, the sign has no significance. That is because unless one upholds his end of the covenant, which for the Israelites has to do with obeying the law, the sign that one is in the covenant has no value. We can detect this is Paul’s meaning because it aligns with the Old Testament where we read that God desires a circumcised heart (Deuteronomy 10:16; Jeremiah 4:4; Deuteronomy 30:6). It also agrees with passages from Paul, where he writes that if one desires circumcision, one is obliged to the entire law (Galatians 5:3).
Some contend that Paul is not against circumcision per se, but that it has no spiritual value unless one keeps the entire law. In other words, Paul believes there is physical value in circumcision because it is an act of obedience for a Jew to be circumcised. Still, unless that same Jew upholds the rest of the law, there is no spiritual value in it.
The problem with this argument is that we do not find Paul promoting the physical value of circumcision in any other letter. Further, it is not exactly clear what sort of spiritual value circumcision could have, for circumcision seems to be nothing more than a physical sign. Finally, we know that even the Old Testament authors promoted obedience to God over physical circumcision.
In the end, it seems that when Paul says there is value in circumcision if one keeps the law, he means that unless one obeys the law perfectly, circumcision will not protect one from God’s judgment.
Interpretation 1:
Circumcision can shield one from God’s wrath if one keeps every aspect of the law perfectly.
Summary:
The Jews emphasize circumcision, but Paul explains that circumcision is only of value if one keeps the law. What he means is that circumcision is a sign of the covenant, and unless one keeps every aspect of the Mosaic law perfectly, one has failed to keep the covenant and is subject to God’s wrath.
There are only two ways to be in a relationship with God. Either one has to be perfect as God is perfect, or one must put his faith in Jesus Christ. Since humans are by nature sinful, it is not possible to please God by our works, so we are saved through Jesus Christ. Thus, we do not count on our works to save us, for we cannot keep the law. Instead, we count on Jesus Christ.
Advocates:
John MacArthur
Douglas Moo
Leon Morris
Thomas Schreiner
Frank Thielman
Minor differences:
Our authors agree that according to Paul, circumcision is a sign that one is in the covenant of God, but the sign is only meaningful if one upholds the covenant.
According to Douglas Moo, the purpose of circumcision is to shield the Jew from the wrath of God.1 The circumcised Jew who keeps the covenant perfectly has done nothing to deserve God’s punishment, and so will not be punished on the Day of Judgment.
For Leon Morris, circumcision is not so much a sign that one is protected from God’s judgment and wrath as it is a sign that one has entered a covenant with God. To be in a covenant with God implies that one is obliged to the terms of the covenant. So if one fails to uphold the terms of the covenant, the sign that one belongs to the covenant is no longer valuable.2
Arguments
Possible weaknesses
Interpretation 2:
Circumcision only has spiritual value if one is obedient to God.
Summary:
Paul believes there is physical value in circumcision for any Jew, because God commanded the Jews to be circumcised. Still, he does not think that circumcision has any spiritual value unless the Jew who is circumcised is obedient to God’s will. And obedience to God’s will means not sinning.
Advocates:
James Dunn
Richard Longenecker
Minor differences:
Our authors agree that Paul sees physical value in circumcision for any Jew, but no spiritual value unless these obey God’s will.
James Dunn contends that by suggesting there is some value in circumcision, Paul seems to endorse circumcision on some level. Of course, circumcision was a sign of the covenant, so Paul is not turning his back on the covenant wholesale. Still, what value there is in circumcision and being Jewish is not fleshed out by Paul until later in the letter.7
Richard Longenecker is more specific. He contends that given circumcision was commanded by God to Abraham, and there is certainly physical value for Jews to follow through on this command and be circumcised. Still, according to Paul, there is no spiritual value unless one keeps the law.8
Arguments
Possible weaknesses
25 For circumcision indeed is of value if you obey the law, but if you break the law, your circumcision becomes uncircumcision.