Salt is good; but if the salt has lost its saltiness, how will you season it? Have salt in yourselves and be at peace with one another. —Mark 9:50
Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer everyone. —Colossians 4:5
As a Catholic sacramental, salt blessed by the liturgical prayer of a priest may be used by itself, or the clergy may mix it with water to make Holy Water. Blessed salt carries with it a very stong blessing. Blessed salt may be used in food, though it should be sprinkled only after the food has been cooked. Some exorcists recommend placing blessed salt in the corners of a room where there is suspected diabolical activity.
Salt was considered a precious commodity in biblical times. The word "salary" comes from the ancient Roman era when soldiers were paid in salt.
St. Hilary said, "The Apostles are preachers of heavenly things, and thus as it were, salters with eternity; rightly called 'the salt of the earth,' as by virtue of their teaching, they, as it were salt, and preserve bodies for eternity."