Theophylact of Ohrid
Catena Aurea · Lukasevangelium 14
Lk 14, Verses 34–35English original
Salt is good: but if the salt have lost his savour, wherewith shall it be seasoned? It is neither fit for the land, nor yet for the dunghill; but men cast it out. He that hath ears to hear, let him hear.
But not only those who are gifted with the grace of teachers, but private individuals also He requires to become like salt, useful to those around them. But if he who is to be useful to others becomes reprobate, he cannot be profited, as it follows, But if the salt has lost his savour, where-with shall it be seasoned?