Authority
All Authority comes from God and it needs to be utilised in accordance with God’s will and desire. This David understood well in his lifetime. Hence he did not try to usurp Saul’s Kingship, when it was in his power to do so. He waited on God to enable it for him.
Jesus Starts His Ministry
The First Reading tells us of Jonah and his ministry amongst the Assyrians of Nineveh. He preached and they believed, and humbled themselves.