Throughout these writings, the theme that “He must reign till He has put all enemies under His feet” is central to how the New Testament talks about Jesus’s authority. It starts in Psalm 110:1 and is echoed by Paul, Peter, and John. This theme shows that Jesus is currently ruling as King at God’s right hand, and He will continue to reign until every enemy is defeated. It assures believers that in the end, Jesus will overcome all opposition, fulfilling God’s plan for the world.