But before I come, I must go to Jerusalem to take a gift to the believers there.
References for Romans 15:25
For you see, the believers in Macedonia and Achaia have eagerly taken up an offering for the poor among the believers in Jerusalem.
References for Romans 15:26
They were glad to do this because they feel they owe a real debt to them. Since the Gentiles received the spiritual blessings of the Good News from the believers in Jerusalem, they feel the least they can do in return is to help them financially.