The inward preservative principle (see Matt. 5:13). Hence our speech is to be “alway with grace, seasoned with salt” (Col. 4:6). Not observe “of salt, seasoned with grace,” that is to say, the salt is to be hidden, not prominent. We are told to have salt in ourselves (Mark 9:50); this principle of truth and purity that preserves from corruption is not for purposes of strife but peace.