Love relates soundly to its own condition. It does good in an orderly way, without noise, not soaring high, not vaunting itself, and not becoming proudly puffed up. On the contrary, it counts all its good deeds as nothing.
Love in its essence, as defined with special clarity by John, the beloved disciple of Jesus Christ, could not yet be fully accessible to the Corinthians as beginners in Christianity.
Therefore the Apostle Paul chiefly depicts love as the rejection of all passions, and partly as the sum of perfections. This is understandable. "The good of love is for us the expected good, which enters us only after all the passions have been driven out."
St. Isaac the Syrian calls love a paradise on an island amid the sea. We are still sailing toward it. But when shall we reach it?
Further, the Apostle says that love does not behave improperly. That is, in everything that seems dishonorable, it acts with high Christian dignity.
It does not disdain anything honorable and holy, however humiliating it may appear to others. For love seeks not its own glory, but the good of the one toward whom it is directed.
Yet it does not admit anger, evil, or unrighteousness into itself. It endures and even covers the weaknesses and deficiencies of others with a word of love, without spreading them abroad.
On the contrary, love relates to everything good and true with joy, trust, and hope for the success of the good. Therefore it willingly endures every unpleasantness and obstacle encountered on the path.
Jesus Christ presented in Himself the highest image of such love. The Apostles, who dedicated their whole life to Christ Who loved them, were also examples of such love.
In particular, the Apostle Paul displayed such love. He so loved his neighbors that he was ready for their sake to be deprived even of eternal life (Rom 9:3).