Augustine of Hippo — as excerpted in the Catena Aurea on John 12:12-19

“(Tr. li. 5) John relates the matter briefly, the other Evangelists are more full. The ass, we read in them, was the foal of an ass on which no man had sat: i. e. the Gentile world, who had not received our Lord. The other ass, which was brought, (not the foal, for there were two,) is the believing Jew.”