3 Bible Verses about Tastelessness

Salt then is good; but if the salt itself have lost its savor, wherewith shall it be seasoned?

Ye are the salt of the earth. But if the salt have lost its savor, wherewith shall itself be salted? It is thenceforth good for nothing, but to be cast out, and to be trodden under foot by men.

Salt is good; but if the salt have lost its saltness, wherewith will ye season it? Have salt in yourselves, and be at peace with one another.