The Jews have a saying, that all that season lose their savour "but salt does not lose its savour". Should it do so,it's henceforth good for nothing, but to be cast out and to be trodden under foot. Salt is good for nothing, but to make things savoury, and preserve from putrefacation; and when it has lost its savour, it is of no use, neither to men nor beasts, as some things are when corrupted; nor is it of any use to the land, or dunghill, for it makes barren, and not fruitful: so ministers of the word, when they have dropped the savoury doctrines of the Gospel, or have quitted their former seeming savoury and exemplary conversations; as their usefulness is gone, so, generally speaking, it is never retrieved; they are cast out of the churches of Christ, and are treated with contempt by everyone.