Pseudo-Jerome — as excerpted in the Catena Aurea on Mark 11:1-10

“Or else, they put upon it their garments, that is, they bring to them the first robe of immortality by the Sacrament of Baptism. And Jesus sat upon it, that is, began to reign in them, so that sin should not reign in their wanton flesh, but righteousness, and peace, and joy in the Holy Ghost. Again, many spread their garments in the way, under the feet of the foal of the ass. What are feet, but those who carry, and the least esteemed, whom the Apostle has set to judge? (v. 1 Cor. 6:4.) And these too, though they are not the back on which the Lord sat, yet are instructed by John with the soldiers.”