Sunday School Lesson for Mark 9:40 "Whoever is not against us is for us." The class used a crayon to draw their tree. They dipped their fingers into paint and put fingerprints on their tree to make leaves, but with only ten leaves the tree wasn't full. I told the children we are all part of the body of Christ, and we work together. They each put their own fingerprints on each other's trees, giving each person a beautiful tree full of leaves. We are not against each other, for each other.