Mark 11:7

The master of humility is Christ who humbled himself and became obedient even to death, even the death of the cross. Thus he does not lose his divinity when he teaches us humility.… What great thing was it to the king of the ages to become the king of humanity? For Christ was not the king of Israel so that he might exact a tax or equip an army with weaponry and visibly vanquish an enemy. He was the king of Israel in that he rules minds, in that he gives counsel for eternity, in that he leads into the kingdom of heaven for those who believe, hope, and love. It is a condescension, not an advancement for one who is the Son of God, equal to the Father, the Word through whom all things were made, to become king of Israel. It is an indication of pity, not an increase in power.

They said to them as Jesus had commanded, and they let them go, and they brought the colt to Jesus. Those who had opposed untying the colt quieted upon hearing the name of the Lord. Because the masters of errors, who resisted the teachers of the gentiles coming to salvation, defended their darkness until, with miracles attesting, the power of the true owner and Lord shone forth. But after the power of the Lord's faith appeared, with the complaints of the adversaries giving way, the assembly of believers was freely brought to God, whom they carried in their hearts.

And they put their garments on it, and He sat on it. The garments of the apostles can be understood as the doctrine of virtues, the explanation of Scriptures, or certainly the varieties of ecclesiastical doctrines, by which those hearts of men, formerly bare and cold, are covered so they may be made worthy of Christ as the rider.

But by the garments of the Apostles, which they put upon it, we may understand the teaching of virtues, or the interpretation of the Scriptures, or the various doctrines of the Church, by which they clothe the hearts of men, once naked and cold and fit them to become the seats of Christ.

It goes on: And they brought the colt to Jesus, and cast their garments on him; and he sat upon him.

The colt, however, was not necessary to Him, but He sent for it to show that He would transfer Himself to the Gentiles.

As long as the common people remain uncorrupted, they recognize what is beneficial. This is why they now pay honor to Jesus, each according to his ability. But what did they say as they glorified Him? They borrowed their song from David, and the word "Hosanna," according to some, means "salvation," while according to others it means "a song." But the first opinion is better, for in the one hundred and seventeenth psalm it says: "O Lord, save us," which in Hebrew is written "Hosanna." They called Christ's Kingdom the "Kingdom of David," first because Christ descended from the seed of David, and second because David means "strong of hand." And who else is so strong of hand as the Lord, whose hands have accomplished such wondrous works? But let us also spread our garments, that is, our flesh, for the flesh is the garment of the soul, and let us submit it to the Lord. Let us pave the path of our life by cutting branches from the trees, that is, by imitating the lives of the saints. For the saints are like trees from which one who imitates their virtues cuts branches. But let our deeds, both those that precede and those that follow, be to the glory of God. For some showed a good beginning in their earlier life, yet their subsequent life was not the same and did not serve to the glory of God.

(Cat. in Marc. Oxon.) Not indeed that He was compelled by necessity to ride on a colt from the mount of Olives to Jerusalem, for He had gone over Judæa and all Galilee on foot, but this action of His is typical. It goes on: And many spread their garments in the way: that is, under the feet of the colt; and others cut down branches off the trees, and strawed them in the way. This, however, was rather done to honour Him, and as a Sacrament, than of necessity. It goes on: And they that went before, and they that followed, cried, saying, Hosanna; blessed is he that cometh in the name of the Lord. 2For the multitude, until it was corrupted, knew what was its duty, for which reason each honoured Jesus according to his own strength. Wherefore they praised Him, and took up the hymns of the Levites, saying, Hosanna, which according to some is the same as save me, but according to others means a hymn. I however suppose the former to be more probable, for there is in the 117th Psalm, (Ps. 118:25) Save now, I beseech thee, O Lord, which in the Hebrew is Hosanna.

(Cat. in Marc. Oxon.) Thus then they give glory to God, saying, Blessed is he that cometh in the name of the Lord. They also bless the kingdom of Christ, saying, Blessed be the kingdom of our father David, which cometh.

(Cat. in Marc. Oxon.) Wherefore also the prophets so often call Christ by the name of David, on account of the descent according to the flesh of Christ from David.

(Cat. in Marc. Oxon.) And further, they give glory to God, when they add Hosanna in the highest, that is, praise and glory be to the God of all, Who is in the highest.

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.