2 Timothy 2:20-21 (NLT)
20 In a wealthy home some utensils are made of gold and silver, and some are made of wood and clay. The expensive utensils are used for special occasions, and the cheap ones are for everyday use. 21 If you keep yourself pure, you will be a special utensil for honorable use. Your life will be clean, and you will be ready for the Master to use you for every good work.

The apostle speaks in a metaphor about those who maintain and persevere in their faith and those who have allowed their faith to fall. Either can be used by God, but those who maintain and persevere in their faith can be used for special occasions and are called to perform honorable tasks for God.

While salt is used as a preservative, it is used mainly in present times to add flavor to food. Some foods just do not taste right without the presence of salt. Salt is meant to enhance the taste of food, but it is not used to take away or call attention to the salt. When something is salted properly we don�t say, �Yum that salt tastes good�, but instead we comment on the flavor of the food we salted. Jesus said 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.� As Christians we are to be salt to others. We are to enhance other Christian lives. We are to bring out the best in them by being the best we can. Be salt to others by maintaining your faith in Christ.