Salt is an amazing thing. Salt has a number of useful qualities. It expedites healing, it enhances flavor, and it inhibits corruption.
In Matthew 5:13, Jesus likened His disciples (including us) to salt. Then, he made a statement I have not really understood until recently: He said, “If the salt loses its saltiness, how then can it be salted?” Depending on which translation you read, the wording is a bit different, but most translations would lead you to think, at first glance, that the question is, “How can the salt become salty again?” Actually, the question is, “How can the earth be salted, if you, the Lord’s followers, do not function as the salt that God intended you to be?” Jesus said that this unsalty salt would be good for nothing, but to be cast out and trodden under the feet of men. When you add this all up, Jesus is saying that He has an intended purpose for His people, and that is that they promote healing, enhance flavor, and inhibit corruption in this world. Can you imagine what would happen if the true believers really took the word of God seriously? There would be such “change” that the politicians heads would swim!