Job 6:6

6:6 Can food that is tasteless be eaten without salt?

Or is there any taste in the white of an egg?

Matthew 5:13

Salt and Light

5:13 “You are the salt of the earth. But if salt loses its flavor, how can it be made salty again? It is no longer good for anything except to be thrown out and trampled on by people.

Luke 14:34-35

14:34 “Salt is good, but if salt loses its flavor, how can its flavor be restored? 14:35 It is of no value for the soil or for the manure pile; it is to be thrown out. The one who has ears to hear had better listen!”