Let not then your good be evil spoken of. "Your good" is your enlightenment, which is in itself a good thing; but it will be "evil spoken of" as a bad thing, if it leads to superciliousness and uncharitableness.
For the kingdom of God is not eating and drinking, but righteousness and peace and joy in the Holy Ghost. For he that in these things serveth Christ is acceptable to God, and approved of men. The concluding clause here has reference to "let not your good," etc., preceding. It is the practical fruits of faith that commend it to men, as well as being the test of its genuineness before God.