10:35And James and John, the sons of Zebedee, come unto him, saying, Master, we would that thou shouldest do for us whatsoever we shall desire.
10:36And he said unto them, What would ye that I should do for you?
10:37They said unto him, Grant unto us that we may sit, one on thy right hand, and the other on thy left hand, in thy glory.
10:38But Jesus said unto them, Ye know not what ye ask: can ye drink of the cup that I drink of? and be baptized with the baptism that I am baptized with?
10:39And they said unto him, We can. And Jesus said unto them, Ye shall indeed drink of the cup that I drink of; and with the baptism that I am baptized withal shall ye be baptized:
10:40But to sit on my right hand and on my left hand is not mine to give; but it shall be given to them for whom it is prepared.
10:41And when the ten heard it, they began to be much displeased with James and John.
10:42But Jesus called them to him, and saith unto them, Ye know that they which are accounted to rule over the Gentiles exercise lordship over them; and their great ones exercise authority upon them.
10:43But so shall it not be among you: but whosoever will be great among you, shall be your minister:
10:44And whosoever of you will be the chiefest, shall be servant of all.
10:45For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.
The nets are being prepared for more fishing. That is what makes the interruption visible: James and John are not described as closing a failed business or already standing on the road. They are working in the boat with their father. The call reaches into an occupation that has equipment, work still to do, and a family attached to it.
Matthew has just described Simon and Andrew leaving their nets. With this second pair of brothers, the wording becomes more personal: the ship and their father. Zebedee is named in the first verse and named by his relationship in the second. Leaving has a human object as well as a material one. Yet Matthew supplies no quarrel, no angry farewell, and no verdict on Zebedee's response. Mark 1:20 adds that hired servants remained in the boat with him. That detail prevents a familiar embellishment in which an entirely deserted father watches his livelihood disappear. The departure is costly enough without an invented catastrophe.
No reply from James is quoted. His response is carried by the verbs: they left and followed. Immediately gives the movement its sharpness, while him gives it its destination. The passage is not describing two men who simply decide to stop fishing. The boat is behind them because Jesus is ahead of them. The change is defined by the person they follow.