The latter could have been expected only from the false brethren, who did not understand the conditions of salvation. About them there is a separate discussion. They demanded not circumcision alone, but observance of the whole Law and all its prescriptions.
Who did not compel him? The Apostles only, or also the Christian community? Since the Apostle has just said that he set forth his teaching both before all and privately before the Apostles, here too it is understood that Titus was compelled by no one.
Neither the Apostles nor the believers forced him, insofar as they judged soundly about the relation of the Mosaic Law to Christianity. Of course, the Apostles were the guiding authorities.
Our ancient interpreters say that the Apostles did not make Titus be circumcised, though some desired it. If some desired it, certainly the false brethren, then others did not desire it.
The matter took place openly. The false brethren would have liked to circumcise him, but the Apostles and the true brethren did not agree to this and left Titus free.
Here one sees the Apostle Paul’s intention to distinguish these false brethren, adherents of the Law, from the assembly of those sound in faith. He makes clear that they were like a faction apart, stubbornly going against everyone.
Blessed Theodoret writes: “Here is the strongest proof that, in the opinion of the Apostles also, those who believed from the Gentiles should not keep the Law. Titus, who was uncircumcised and called from the Greeks, was not commanded to be circumcised, though very many desired the opposite.”
Saint Damascene says that the uncircumcision of Titus “was the strongest proof that the Apostles did not blame Saint Paul because he did not circumcise the Gentiles.”
Ambrosiaster adds: “It is implied: Why then should you Galatians be circumcised, when Titus was not compelled to be circumcised by the chief Apostles, but was received into communion while uncircumcised?”
Other interpreters of ours dwell more on how the Apostles themselves tolerated circumcision in Jerusalem. They all give one answer: it was by a certain economy. That is, it was allowed for a time as a measure of prudence, not as an unchangeable rule.
Oecumenius says that the fact that Titus was not compelled to be circumcised serves as “proof that Peter and those with him do not legislate circumcision, but allow it by condescension to those who believed from the Jews.”
Theophylact says: “The Apostles too allowed circumcision, not as an indispensable law, but according to a certain economy,” that is, as a temporary measure of prudent condescension to the weak.
Chrysostom explains this more fully: “That the Apostles did not compel the uncircumcised Titus to be circumcised very clearly proved that they did not condemn Paul’s teaching or his actions.
Even more, this was proved by the fact that when the opponents learned of it and insisted on circumcision, the Apostles did not command it to be done. He points to this very thing by the words, ‘and because of the false brethren who came in.’
Who these false brethren are requires explanation here. If the Apostles allowed circumcision, why do you call false brethren those who, with the Apostles’ knowledge, commanded this to be done?
First, it is not the same thing to require something to be done and to allow what is being done. The one who requires insists that his demand be fulfilled as necessary and important.
But the one who does not require, and merely does not forbid the person who wishes it, allows an action not as a due and necessary thing, but for some special arrangement.
So here also the Apostles allowed circumcision, but not as defenders of the Law. They did so by condescension to the weakness of the Jews.
If they had defended the Law, they would not have acted one way toward Jews and another toward Gentiles. What had to be done by the Law of Christ for one group would certainly have had to be done for the other.
But if they laid down as law that the Gentiles were not to be compelled to circumcision, they showed that they allowed it to the Jews only by condescension.
The false brethren did this with a different intention. They wished to tear the believers away from grace and again subject them to the yoke of bondage.
This is the first difference, which sets a great wall between the Apostles and the false brethren. The second is that the Apostles did this in Judea, where the Law was still so strong.
The false brethren did this everywhere, because they wished to enslave all the Galatians as well. From this it is clear that they acted not for edification, but for complete destruction.”