Albert Barnes Commentary Romans 15:31

"that I may be delivered from them that are disobedient in Judaea, and [that] my ministration which [I have] for Jerusalem may be acceptable to the saints;" — Romans 15:31 (ASV)

That I may be, etc. The unbelieving Jews in Judea had been opposed to Paul's conversion. They could not forget that he had carried letters of commission from them to persecute the Christians at Damascus. They regarded him as an apostate. They had heard of his success among the Gentiles, and they had been informed that he taught all the Jews among the Gentiles to forsake the laws of Moses (Acts 21:21).

Consequently, the apostle was certainly aware that, in returning to Judea, he exposed himself to particular dangers. His fears, as the result showed, were well-founded. They showed all the opposition to him which he had always anticipated (Acts 21:21).

And that my service. My ministry; or the act of service which I am going to perform for them, referring to the contribution which he was bringing for the poor saints at Jerusalem.

For Jerusalem. For the poor Christians in Jerusalem.

May be accepted by the saints. This means that the poor Christians there might be willing to receive it. The grounds for doubt and hesitation about whether they would be willing to receive this seem to have been two:

1. Many, even among Christians, might have had their minds filled with prejudice against the apostle from the reports constantly circulating among the Jews that he was opposing and denouncing the customs of Moses. Therefore, to satisfy them when he went up to Jerusalem, he actually performed a vow, in accordance with the law of Moses, to show that he did not intend to treat its laws with contempt (Acts 21:22–23, 26-27).
2. Many of the converts from Judaism might have been unwilling to receive an offering made by Gentiles. They might have retained many of their former feelings—that the Gentiles were polluted and that they ought to have no fellowship with them. Early opinions and prejudices wear off slowly. Christians retain former notions long after their conversion, and often many years are required to teach them broader views of Christian charity. It is not surprising that the Christians in Judea were slow to learn all the ennobling lessons of Christian benevolence, surrounded as they were by the institutions of the Jewish religion and having been educated themselves in the strictest regard for those institutions.