The Mutual Faith That Comforts

Romans 1:12-14
That is, that I may be comforted together with you by the mutual faith both of you and me.
13 Now I would not have you ignorant, brethren, that oftentimes I purposed to come unto you, (but was let hitherto,) that I might have some fruit among you also, even as among other Gentiles.
14 I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.