Romans 1:14-15 : I am debtor both to Greeks and to Barbarians, both to the wise and to the foolish. So, as much as in me is, I am ready to preach the gospel to you also that are in Rome. It was not anything these Greeks and Barbarians had done for Paul that put him in debt to them. Jesus had redeemed him, saved him, and made him an heir of heaven, and thus had brought him under obligation to do all he could to carry the same blessings to others. He had thus been brought under obligation to all men. He was ready to do what he could to discharge that obligation to the Romans. A practical question arises here: Was Paul under any obligation that the rest of us are not under? Are we not in debt the same as he? Are not all Christians under the same obligations? Everyone is responsible up to the limit of his possibilities.