Theophylact of Bulgaria
The Lord refers to the apostles as salt, symbolizing those endowed with a protective and unifying influence. Just as salt preserves meat and prevents decay, the words of a teacher, when robust and potent, help to restrain individuals from succumbing to earthly desires, thereby thwarting the insidious presence of corruption. If the teacher lacks this saltiness and does not possess the invigorating and binding strength within themselves, whom shall they correct? Therefore, cultivate this salt within yourselves, signifying the empowering and unifying grace of the Spirit, so that you may dwell in harmony with one another, united through the bond of love. This embodies the essence of possessing salt and clarifies the call to "have peace with your neighbors." As Solomon observed, "The horses are many in the chariot of Pharaoh," etc.