Jesus taught about being the salt to the Earth while on the mount. In Matthew 5:13, he said you are salt, but how can the salt they made salty again if it loses saltness, it is no longer good for anything except to be thrown out. Another words, we as Christians, are supposed to season the world with our testimonies, and share God‘s word. So that people can have hope, but if you walk around and do not talk about God‘s word, and now he has blessed us, what good are we to him?