Mark 11:9

The boys in the Gospel raised aloft their branches as the Savior entered Jerusalem. They kept on crying: "Hosanna." … They borrowed these versicles from Psalm 117. Hosanna, moreover, is the Hebrew for "O Lord, grant salvation!"

"Hosanna," however, is a word of supplicating, as some say who know the Hebrew language, more declaring a feeling than signifying something. Just as in the Latin language there are words which we call interjections, as when in sorrow we say, Heu! Or when we are delighted, we say, Vah! Or when we are amazed, we say, "Oh, what a great thing!" For then oh signifies nothing except the feeling of one who is amazed.

(ubi sup.) But Hosanna is a Hebrew word, made out of two, one imperfect the other perfect. For save, or preserve, is in their language, hosy; but anna is a supplicatory interjection, as in Latin heu is an exclamation of grief.

(ubi sup.) And because all the elect, whether those who were able to become such in Judæa, or those who now are such in the Church, believed and now believe on the Mediator between God and man, both those who go before and those who follow cried out Hosanna.

But both those of our deeds which go before and those which follow after must be done to the glory of God; for some in their past life make a good beginning, but their following life does not correspond with their former, neither does it end to the glory of God.

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.

They cry out Hosanna, that is save us, that men might be saved by Him who was blessed, and was a conqueror and came in the name of the Lord, that is, of His Father, since the Father is so called because of the Son, and the Son, because of the Father.

Or Hosanna, that is, save in the highest as well as in the lowest, that is, that the just be built on the ruin of Angels, and also that both those on the earth and those under the earth should be saved. In a mystical sense, also, the Lord approaches Jerusalem, which is 'the vision of peace,' in which happiness remains fixed and unmoved, being, as the Apostle says, the mother of all believers. (Gal. 4:26)

Those who went before are the prophets, and those who followed are the Apostles.

(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.