Bre and I attempted to teach our children some sign language when they were really young. It is an excellent way to get them to communicate with you before they can talk, and it has been useful beyond those early days. We had a limited vocabulary, however, and sometimes when I sign I need to make gestures that, to be frank, are not always understood. Or never understood. Turns out signs must be understood to be helpful. Today, the Pharisees and Sadducees want a sign from Jesus, but they won’t get one. Instead, Jesus pleads with his disciples to see the warning signs of their leaven.