John Chrysostom

"Let your forbearance be known unto all men." He said above, "Whose god is the belly, and whose glory is in their shame," and that they "mind earthly things." (Phil. iii. 19.) It was probable that they would be at enmity with the wicked; he therefore exhorted them to have nothing in common with them, but to use them with all forbearance, and that not only their brethren, but also their enemies and opposers. "The Lord is at hand, in nothing be anxious." For why, tell me? do they ever rise in opposition? …

Homily on Philippians 14 ↗

Theophylact of Ohrid

Since above Paul condemned some as enemies of the cross, he now urges the Philippians not to treat them with hostility, but to deal with them mercifully, even if they were enemies.

Commentary on Philippians ↗

Thomas Aquinas

Fourthly, it should be moderate and not flooded with pleasures, as happens in worldly joy; hence he says, let all men know your forbearance. As if to say: Your joy should be so moderated that it will not degenerate into dissoluteness. He says, let all men know, as if to say: Your life should be so moderate in externals, that it offends the gaze of no one; for that would hinder your manner of life. Then when he says, the Lord is at hand, he touches on the cause of joy. For a man rejoices when his friend is near. …

Commentary on Philippians ↗