Romans 15:31

"That I may be delivered from them that do not believe in Judea." A great struggle then lies before him. And this too is why he calls for their prayers. And he does not say that I may be engaged in it, but "I may be delivered," as Christ commanded, to "pray that we enter not into temptation." (Matt. xxvi. 41.) And in saying this he showed, that certain evil wolves would attack them, and those who were wild beasts rather than men. And out of this he also found grounds for another thing, namely, for showing that he with good reason took the office of ministering to the Saints, if, that is, the unbelievers were in such force that he even prayed to be delivered from them. For they who were amongst so many enemies, were in danger of perishing by famine also. And therefore there was absolute need of aid coming (or "of his going") from other quarters to them. "And that my service which I have for Jerusalem may be accepted of the Saints." That is, that my sacrifice may be accepted, that with cheerfulness they may receive what is given them. See how he again exalts the dignity of those who were to receive it. Then he asks for the prayer of so great a people in order to what was sent being received. And by this he shows another point also, that to have given alms does not secure its being accepted. For when any one gives it constrainedly, or out of unjust gains, or for vanity, the fruit of it is gone.