Charles Spurgeon Commentary Romans 15:30-31

"Now I beseech you, brethren, by our Lord Jesus Christ, and by the love of the Spirit, that ye strive together with me in your prayers to God for me; 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 15:30-31 (ASV)

For there were some saints in Jerusalem who were very narrow-minded, and who hardly thought it right to accept anything from Gentiles. They had not yet fully moved beyond their Jewish customs and mindset, and Paul was a little afraid for fear that what he was taking to them might not be acceptable, so he asked the Romans to pray about that matter.

Is there anything about which believers may not pray? If there is, then we have no right to have anything to do with it. Bring everything before God in prayer, for anything that is right may lawfully be prayed about.

So Paul asked the Christians in Rome to pray about that matter of his journey to Jerusalem, and also to pray for his return.