“his own city.” Capernaum. Jesus moved to Capernaum after the people of his hometown, Nazareth, tried to kill him (Luke 4:29-31; cp. Matt. 4:13). Jesus either bought or rented a house in Capernaum, because John 2:12 indicates he even moved his family there. As we see in this verse, Capernaum became known as Jesus’ “own city.” One of the reasons Jesus likely picked to move to Capernaum was that it was on the Via Maris, the Road of the Sea, which was the great trade route from Egypt in the south to Damascus in Syria and on to Mesopotamia (see commentary on Matt. 4:15). [For more about Capernaum being Jesus’ hometown, see commentary on Mark 2:1].
“Look!” The Greek word is idou (#2400 ἰδού), and it is used to get our attention. See commentary on Matthew 1:20 (“Look!).