Friends, we are reading from the marvelous Sermon on the Mount in the Gospel of Matthew. This week, we hear Jesus compare his disciples to three things: the salt of the earth, the light of the world, and a city set on a mountain. What do all three of these things have in common? They do not exist for themselves; rather, they exist for something else. How is your Christianity impacting the world around you—making it better and getting in the way of evil and wickedness?