Bible Verses About Salt: Lost its savour when exposed to the air

Ye are the salt of the earth: but if the salt haue lost his sauour, wherewith shall it be salted? It is thenceforth good for nothing, but to be cast out, and to be troden vnder foote of men.

Salt is good: but if the salt be vnsauerie, wherewith shall it be seasoned? haue salt in your selues, and haue peace one with another.