M2 presents D2: "Your rod and Your staff, they comfort me" (Psalm 23:4).The rod applied to us is more comforting than the rod used to protect us. You see, one rod keeps the enemy outside of us away, but the other rod keeps the enemy inside of us from having his fleshly way. In truth, the Good Shepherd will check us to protect us. Without the rod of discipline, there would be no root of conviction.