The Gospel for this Sunday (Matthew 4: 12-23) has Jesus beginning to preach in Galilee and calling his first disciples to follow him. They immediately left their nets and followed him.
The reflection in Give Us This Day is taken from Pope Francis. I shall just quote a small part. The Pope tells us that the first missionary appearances take place along the lake of Galilee, in contact with the multitude, in particular with the fishermen. "There Jesus does not only proclaim the coming of the kingdom of God, but seeks companions to join in his salvific mission...The call reaches them in the midst of their daily activity: the Lord reveals himself to us not in an extraordinary or impressive way, but in the everyday circumstances of our life. There we must discover the Lord; and there he reveals himself, makes his love felt in our heart; and there--with this dialogue with him in the everyday circumstances of life--he changes our heart."
Pope Francis, Angelus, January 22, 2017.