A chiasm is a literary structure where vocabulary of the first section of a passage is repeated in reverse order in the second. The center of the chiasm is typically the climax of the passage. In Mark 3:1-6 the climax is Jesus asking those in the synagogue, “Is it lawful to do good or to do harm on the Sabbath, to save a life or to kill?” But they kept silent. (Mark 3:4).