It is common for a teacher to try to use an familiar example to help students grasp and understand a complex topic. The prophet Jeremiah uses such images quite often when trying to get the people to convert. Today’s image is quite strange, but the point is clear. If we allow ourselves to be away from God, when God has done so many things for us, we will rot. The good news is indeed the gospel. Just a little bit of God’s grace is enough to help us to experience grace and life.