What is the meaning of Matthew 4:12-16?

12 Now when Jesus had heard that John was cast into prison, he departed into Galilee; 13 And leaving Nazareth, he came and dwelt in Capernaum, which is upon the sea coast, in the borders of Zabulon and Nephthalim: 14 That it might be fulfilled which was spoken by Esaias the prophet, saying, 15 The land of Zabulon, and the land of Nephthalim, by the way of the sea, beyond Jordan, Galilee of the Gentiles; 16 The people which sat in darkness saw great light; and to them which sat in the region and shadow of death light is sprung up. (Matthew 4:12-16 KJV)

William Burkitt’s New Testament Commentary

Observe here, 1. Our Savior, hearing of John’s imprisonment, provides for his own safety, by departing into Galilee. As our holy Lord avoided persecution, so may we.

Observe, 2. The place in Galilee he comes to, Capernaum. Christ had three cities which he called his own; Nazareth, where he was bred; Bethlehem, where he was born; and Capernaum, where he dwelt: this was a sea-coast town in the bordes of Zabulon and Nephthali.

Observe, 3. The special providence of God in this change of our Saviour’s habitation; for by that means the prophecy, Isa 9:1 was fulfilled, which declares, that in that dark part of the country, the Messiah, the true light, should shine forth.

Learn hence, 1. That a people destitute of the saving knowledge of the gospel are in great darkness, how great soever the light of their outward comforts may be. This people had natural light enough, and civil light enough; they had an abundance of wealth and riches, peace and plenty; but they wanted the light of Christ and his gospel,and therefore are said to sit in darkness.

2. That wherever the gospel is preached amongst a people, it is a light springing up and shining forth among them; quickening and enlivening, reviving and cheering, the souls of those who entertain it, how great soever their outward darkness and distress may be. The people that sat in darkness saw great light, and to them that sat in the region and shadow of death, light is sprung up, &c.