Augustine of Hippo

We gather from John's account, that six days before the Passover, Jesus came to Bethany, and thence entered Jerusalem sitting upon the ass, after which were done the things related to have been done at Jerusalem. We understand therefore that four days elapsed from His coming to Bethany, to make this two days before the Passover. (v. …

Catena Aurea by Aquinas ↗

Thomas Aquinas

You know that after two days shall be the pasch: in this foretelling he does not simply foretell, but says, after two days shall be the pasch: and this was done to indicate that not just any passion is the passion of Christ, but that which is signified by the paschal sacrifice. And he says after two days. And according to this you should consider that these words were spoken on the thirteenth day of the moon, i.e., on Tuesday, because on the fifteenth day of the moon the Pasch was celebrated. …

Commentary on Matthew ↗