And they immediately left the ship. The first thing that strikes us here is the power of Christ's voice. Not that his voice alone makes so powerful an impression on the hearts of men: but those whom the Lord is pleased to lead and draw to himself, are inwardly addressed by his Spirit, that they may obey his voice. The second is, the commendation bestowed on the docility and ready obedience of his disciples, who prefer the call of Christ to all worldly affairs. The ministers of the Word ought, in a particular manner, to be directed by this example, to lay aside all other occupations, and to devote themselves unreservedly to the Church, to which they are appointed.

Left their father - This showed how willing they were to follow Jesus. They showed us what we ought to do. If necessary, we should leave father, and mother, and every friend, Luke 14:26. If they will go with us, and be Christians, it is well; if not, yet they should not hinder us. We should be the followers of Jesus. And, while in doing it we should treat our friends kindly and tenderly, yet we ought at all hazards to obey God, and do our duty to him. We may add that many, very many children, since Sunday schools have commenced, have been the means of their parents' conversion. Many children have spoken to their parents, or read the Bible to them, or other books, and prayed for them, and God has blessed them and converted them. Every child in a Sunday school ought to be a Christian; and then should strive and pray that God would convert his parents, and make them Christians too. We see here, too, what humble instruments God makes use of to convert people. He chose fishermen to convert the world. He chooses the foolish to confound the wise. And it shows that religion is true, and is the power of God, when he makes use of such instruments to change the hearts of people and save their souls. See the notes at 1-Corinthians 1:26-28.

Left the ship and their father - By the ship, το πλοιον, we are to understand the mere fishing-boat, used for extending their nets in the water and bringing the hawser or rope of the farther end to shore, by which the net was pulled to land. But why should these be called to leave their employment and their father, probably now aged? To this I answer, that to be obedient to, provide for, and comfort our parents, is the highest duty we owe or can discharge, except that to God. But, when God calls to the work of the ministry, father and mother and all must be left. Were we necessary to their comfort and support before? Then God, if he call us into another work or state, will take care to supply to them our lack of service some other way; and, if this be not done, it is a proof we have mistaken our call. Again, were our parents necessary to us, and in leaving them for the sake of the Gospel, or in obedience to a Divine command, do we deprive ourselves of the comforts of life? No matter: we should prefer the honor of serving the Most High, even in poverty and humility, to all the comforts of a father's house. But what an honor was the vocation of James and John, to old Zebedee their father! His sons are called to be heralds of the God of heaven! Allowing him to have been a pious man, this must have given him unutterable delight.

And they immediately left the ship,.... More is expressed here than before, for they not only left their nets, but their ship too; which was of much more value; nay, even "their father" also, "with the hired servants", Mark 1:20 and so complied with the call of Christ to his people, Psalm 45:10 and thereby proved, that they were sincerely his followers, Luke 14:26 and might expect the gracious promise of Christ to be made good unto them, Matthew 19:28.

And they immediately left the ship and their father--Mark adds an important clause: "They left their father Zebedee in the ship with the hired servants" (Mark 1:20); showing that the family were in easy circumstances.
and followed him--Two harmonistic questions here arise: First, Was this the same calling as that recorded in John 1:35-42? Clearly not. For, (1) That call was given while Jesus was yet in Judea: this, after His return to Galilee. (2) Here, Christ calls Andrew: there, Andrew solicits an interview with Christ. (3) Here, Andrew and Peter are called together: there, Andrew having been called, with an unnamed disciple, who was clearly the beloved disciple (see on John 1:40), goes and fetches Peter his brother to Christ, who then calls him. (4) Here, John is called along with James his brother: there, John is called along with Andrew, after having at their own request had an interview with Jesus; no mention being made of James, whose call, if it then took place, would not likely have been passed over by his own brother. Thus far nearly all are agreed. But on the next question opinion is divided: Was this the same calling as that recorded in Luke 5:1-11? Many able critics think so. But the following considerations are to us decisive against it. First here, the four are called separately, in pairs: in Luke, all together. Next, in Luke, after a glorious miracle: here, the one pair are casting their net, the other are mending theirs. Further, here, our Lord had made no public appearance in Galilee, and so had gathered none around Him; He is walking solitary by the shores of the lake when He accosts the two pairs of fishermen: in Luke, the multitude are pressing upon Him, and hearing the word of God, as He stands by the Lake of Gennesaret--a state of things implying a somewhat advanced stage of His early ministry, and some popular enthusiasm. Regarding these successive callings, see on Luke 5:1.
First Galilean Circuit (Matthew 4:23-25).

They left their father. At once. They had received a higher call. No earthly preference can excuse a rejection of the call of Christ.