The First Commandment. We see in Abraham's example our own glaring failures to fear, love, and trust in God above all things, yet the Lord provides forgiveness for us.
The second peak of the Epiphany season, Jesus reveals his glory to a select few – to those who believe. As the disciples saw Jesus glory with their own eyes, we have the same revelation in the Word.
Jesus shows his power and authority in his teaching and in his power over the devil. Jesus continues to show that power today as he evicts the devil from people's hearts and moves in himself.