You are the salt of the earth. But if the salt loses its saltiness, how can it be made salty again? It is no longer good for anything, except to be thrown out and trampled underfoot (Matthew 5:13, NIV).
Salt. That is one of the word pictures Jesus used to teach His disciples who they were and what their purpose was. Jesus’ disciples are the salt of the earth. They are the carriers of His grace to the world. Salt preserves, flavors, heals, disinfects, and cleans. Grace does the same things. Just as salt was necessary for healthy eating, cooking, cleaning, and healing for everyday living back then, grace is just as necessary for everyday living now.
Jesus then asks what would happen if salt lost its saltiness. If you have salt that isn’t salty, it is good for nothing. The point being if we do not live in such a way as to bring the saltiness of grace to the world, where else are people going to get it? Like nothing but salt does the work of salt, nothing but grace does the work of grace. If we become bringers of grace in name only, we are useless.
Paul says in Colossians 4:6 (NIV), Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone.
So how salty is your grace? A life that is full of good salty grace is marked by a humble spirit that knows its need for grace. It is seen in the salty tears it cries for grace and again for receiving that grace. It is seen in meekness that reaches out to others in compassion and gentleness instead of being critical in spirit. It drives you to seek after righteousness in how we conduct ourselves, while responding to others in mercy. A salty grace purifies the heart and seeks to expand its seasoning in making peace and bringing forgiveness, and retains its flavor even when it is attacked (Matthew 5:3-10).
Don’t be satisfied with low-salt grace.
Learning To Be Full Of Grace And Truth. 