John Lightfoot on John 13:1

[Now before the feast of the Passover.] The Vulgar, Beza, and the Interlinear read, Now before the feast day of the Passover: but by what authority they add day it concerns them to make out. For,

I. In the common language of the Jews, the whole festivity and time of Passover, Pentecost, and Tabernacles, no part of that time being excepted; nor does the word feast, occur anywhere throughout the whole Bible in another signification.

II. It is something harsh to exclude the paschal supper out of the title of the feast of the Passover, because the name of the whole feast takes its original from it. This they do who imagine this supper mentioned in this place to have been the paschal supper, and yet it was before the feast of the Passover.

We have therefore shewn, by many arguments in our notes upon Matthew 26:2,6, that the supper here mentioned was the same with that at Bethany, in the house of 'Simon the leper,' two days before the Passover.