Why would the Bible compare Christians to salt and say that we are the salt of the earth in Matthew 5:13 ( “You are the salt of the earth. But what good is salt if it has lost its flavor? Can you make it salty again? It will be thrown out and trampled underfoot as worthless”). Salt is a compound that is “abundant in nature, and is used especially to season or preserve food or in industry” as merriam-webster.com states. This definition says two significant things that can be linked to Christians. It says it is “abundant in nature,” and it is used to “season or preserve.” There are many who profess to know the salvation of Christ, so you could say that they are “abundant in nature.” The purpose of Christians is to bring season to a dark and lost world- to add life to a dying world, or “preserve” those who are lost.
How do we do this? We bring the gospel of Christ to the lost world. His message preserves those who do not know him. We bring life, joy, love, and hope to the world, just as salt brings flavor to otherwise bland food. As this verse states, though, what good are we if we have lost the flavor (or lost the life, joy, love, and hope he gives)? We must live as though we bear the greatest flavor to this world!