The old King James read:
I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.
I have changed to:
I am under obligation, both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.
The old translation made it sound that Paul was indebted to the Greeks and Barbarians, which is not as correct as saying he was under obligation to them.