Matthew
Matthew 26:18ESV·traditional attribution

He said, “Go into the city to a certain man and say to him, ‘The Teacher says, My time is at hand. I will keep the Passover at your house with my disciples.’”

John Calvin Reformed @genevareformer

18. Go into the city to such a man. Matthew specifies a certain man; the other two Evangelists relate that the disciples were sent as to an unknown individual, because a sign was given to them of a man carrying a pitcher of water.

John Gill Reformed Baptist @doctorgill

And the disciples did as Jesus had appointed them,.... They went into the city of Jerusalem; they met the man carrying a pitcher of water home; they followed him into the house he entered; they addressed the master of the house, in the manner Christ directed, who showed them a large upper room, prepared with all proper furniture for such an occasion, as Christ had...

Albert Barnes Presbyterian @notesbybarnes

Verse 18. Go into the city to such a man. That is, Jerusalem, called the city, by way of eminence. Luke says that the disciples whom he sent were Peter and John. The man to whom they were to go, it seems, he did not mention by name, but he told them that when they came into the city, a man would meet them bearing a pitcher of water.