Catena Aurea on Mark 9:43–50: Pseudo-Chrysostom

Or else it is meant, that every gift of our victim, which is accompanied by prayer and the assisting of our neighbour, is salted with that divine fire, of which it is said, “I am come to send fire on earth.” [Luke 12:49] Concerning which it is added: “Salt is good;” that is, the fire of love.

“But if the salt have lost his saltness,” that is, is deprived of itself, and that peculiar quality, by which it is called, good, “where with will ye season it?” For there is salt, which has saltness, that is, which has the fulness of grace; and there is salt, which has no saltness, for that which is not peaceful is salt unseasoned.