16:11 not . . . about bread. Jesus frequently spoke in parables, but was misunderstood here by His disciples who thought He was speaking literally (v. 7). They should have realized from His feeding miracles that Jesus could provide food if that was what was needed, and so recognized that He was speaking metaphorically about the “leaven” (the doctrine, v. 12) of the Pharisees and Sadducees (Mark 8:15 note).