'Tasteless' in the Bible

“Can something tasteless be eaten without salt,Or is there any taste in the white of an egg?

“You are the salt of the earth; but if the salt has become tasteless, how can it be made salty again? It is no longer good for anything, except to be thrown out and trampled under foot by men.

“Therefore, salt is good; but if even salt has become tasteless, with what will it be seasoned?