Rom15,23 But now that there is no more place for me to work in these regions, and since I have been longing for many years to see you, > Paul sais: There is no more place for me to work - Could i ever say that about Berlin? Why is he saying that?
So now he plans to go to Spain and on the way to Spain he will stop in Rom! Paul keeps on going forward!24 I plan to do so when I go to Spain. I hope to visit you while passing through and to have you assist me on my journey there, after I have enjoyed your company for a while. > Paul does not know, that he will not go to Rom as a free man
25 Now, however, I am on my way to Jerusalem in the service of the saints there. >  
26 For Macedonia and Achaia were pleased to make a contribution for the poor among the saints in Jerusalem.  > He is going to suport the mother-church!
27 They were pleased to do it, and indeed they owe it to them. > Really? For if the Gentiles have shared in the Jews' spiritual blessings, they owe it to the Jews to share with them their material blessings.  > Wow - interesting connection!
28 So after I have completed this task and have made sure that they have received this fruit, I will go to Spain and visit you on the way.
29 I know that when I come to you, I will come in the full measure of the blessing of Christ. > "I will come in the full measure of the blessing of Christ." - that is how he knows he will arrive. He will arrive as a prisoner and die! Like Christ... 
30 I urge you, brothers, by our Lord Jesus Christ and by the love of the Spirit, to join me in my struggle by praying to God for me.
31 Pray that I may be rescued from the unbelievers in Judea
and that my service in Jerusalem may be acceptable to the saints there,  > How humble is he!
32 so that by God's will I may come to you with joy and together with you be refreshed.
33 The God of peace be with you all. Amen.

> For what does Paul wants them to pray:
That he will be rescued from the unbelievers in Judea. So Paul knows it will be very tuff for him, what is before him. Paul knows he needs to be rescued!
> Paul wants to serve the saints in Jerusalem. He feels in need from God, that how he is serving is acceptable to them.
i often think, i serve - this is just fine. Be fine with it guys, i am serving you!

ALSO in connection to the service in Jerusalem: THAT GOD's WILL IS COMING TO THEM IN JOY AND TOGETHER WITH THEM HE WILL BE REFRESHED!!

Do i present God's will with JOY?
Is my presentation refreshing?

GOD HELP ME!