What is the meaning of Matthew 26:17-19?

17 Now the first day of the feast of unleavened bread the disciples came to Jesus, saying unto him, Where wilt thou that we prepare for thee to eat the passover? 18 And he said, Go into the city to such a man, and say unto him, The Master saith, My time is at hand; I will keep the passover at thy house with my disciples. 19 And the disciples did as Jesus had appointed them; and they made ready the passover. (Matthew 26:17-19 KJV)

William Burkitt’s Commentary

The time for the celebration of the passover being now at hand, Christ sends two of his disciples to Jerusalem, to prepare things necessary in order thereunto: accordingly they enter the city, and find the master of an house, whose heart Christ, by his divine power, had so inclined, that he willingly accommodated them upon this occasion. Our blessed Saviour had not a lamb of his own, and possibly no money in his purse to buy one, but he finds as excellent accommodations in this poor man’s house, as if he had dwelt in Ahab’s ivory palace, and had had the provisions of Solomon’s table.

Learn hence, that Christ has such an influence upon, and command over, the spirits of men, that he can incline them to do what service soever he pleaseth for him. When Christ has a passover to celebrate, he will prepare an house, and dispose the heart to a free reception of himself.

Learn, 2. That Christ, being under the law, observes and keeps the law of the passover. Thus he fulfilled all righteousness; and although the ceremonial law was to receive its abolishment in the death of Christ, yet all the time of his life he punctually observes it.