At first glance, the Epistle and the Gospel for the Nineteenth Sunday after Trinity share the theme of walking. In the Epistle from Ephesians 4:17-32, the Apostle Paul speaks in a figurative way of walking; it is pursuing a certain way of life. He exhorts his readers to live faithful and holy lives befitting those joined to Christ through the Holy Spirit. In the Gospel selection from Matthew 9, Jesus heals a paralyzed man and enables him to walk physically.
Yet, on closer examination, the deeper theme that connects the Epistle and the Gospel is not walking but forgiveness. In Ephesians 4:32, the Apostle points out that living a Christian life is rooted in the divine forgiveness that comes through Christ. Likewise, in Matthew 9:2, Jesus heals the paralyzed man by first forgiving his sins. The scribes or scholars of the law react negatively because they believe that only God can forgive sins. In one sense, the scribes have a point. Ultimately, forgiveness or pardon for sins comes from God, and Jesus has the right to forgive sins because He is God the Son incarnate. With Christ's incarnation, a new era has begun. He is divine grace personified. The good news of divine mercy and forgiveness of sin is fully proclaimed by Jesus.
Later in the Gospels, Jesus Christ commissions His disciples, His Church, to continue His gracious work. The Apostles and other disciples are the living Body of Christ in the world, and Christians have continued to proclaim forgiveness through Word and Sacrament. Grateful for God's mercy toward us, we share His message of mercy and forgiveness with others through our words and the ways we live.