Mathew 5:13

You are the salt of the earth; but the salt loses its flavor, how shall it be seasoned? It is then good for nothing but to be thrown out and trampled underfoot by men.

Salt elevates the flavor of whatever it is sprinkled on and can it can be used to preserve. We are supposed to walk according to the word and set ourselves apart with our lives. Our lives show the season of the word when we walk by faith. Our faith walk should set us apart and be an influence for the good for those around us.