3 That my meaning may be clearer, I will read it according to its sense thus: “Paul and Sosthenes to the Church of God which is in Corinth and to all who call upon the Name of Him who is both our Lord and theirs in every place, whether in Rome or wheresoever else they may be: grace unto you and peace from God our Father and the Lord Jesus Christ.”
Or again thus; which I also believe to be rather more correct: “Paul and Sosthenes to those that are at Corinth, who have been sanctified, called to be Saints, together with all who call upon the Name of our Lord Jesus Christ in place, both theirs and ours;” that is to say, “grace unto you, and peace unto you, who are at Corinth, who have been sanctified and called;” not to you alone, but “with all who in every place call upon the Name of Jesus Christ, our Lord and theirs.”
Now if our peace be of grace, why have you high thoughts? Why are You so puffed up, being saved by grace? And if you have peace with God, why wish to assign yourself to others? Since this is what separation comes to. For what if you be at “peace” with this man, and with the other even find “grace?” My prayer is that both these may be yours from God; both from Him I say, and towards Him. For neither do they abide (μένει, Savile in marg.) secure except they enjoy the influence from above; nor unless God be their object will they anything avail you: for it profits us nothing, though we be peaceful towards all men, if we be at war with God; even as it is no harm to us, although by all men we are held as enemies, if with God we are at peace. And again it is no gain to us, if all men approve, and the Lord be offended; neither is there any danger, though all shun and hate us, if with God we have acceptance and love. For that which is verily grace, and verily peace, comes of God, since he who finds grace in God's sight, though he suffer ten thousand horrors, fears no one; I say not only, no man, but not even the devil himself; but he that has offended God suspects all men, though he seem to be in security. For human nature is unstable, and not friends only and brethren, but fathers also, before now, have been altogether changed and often for a little thing he whom they begot, the branch of their planting, has been to them, more than all foes, an object of persecution. Children, too, have cast off their fathers. Thus, if you will mark it, David was in favor with God, Absalom was in favor with men. What was the end of each, and which of them gained most honor, you know. Abraham was in favor with God, Pharaoh with men; for to gratify him they gave up the just man's wife. Which then of the two was the more illustrious, and the happy man? Every one knows. And why speak I of righteous men; The Israelites were in favor with God, but they were hated by men, the Egyptians; but nevertheless they prevailed against their haters and vanquished them, with how great triumph, is well known to you all.
For this, therefore, let all of us labor earnestly; whether one be a slave, let him pray for this, that he may find grace with God rather than with his master; or a wife, let her seek grace from God her Saviour rather than from her husband; or a soldier, in preference to his king and commander let him seek that favor which comes from above. For thus among men also will you be an object of love.
Source: Homilies on First Corinthians (New Advent)