Augustine of Hippo
Catena Aurea · Johannesevangelium 12
On the next day much people that were come to the feast, when they heard that Jesus was coming to Jerusalem, Took branches of palm trees, and went forth to meet him, and cried, Hosanna: Blessed is the King of Israel that cometh in the name of the Lord. And Jesus, when he had found a young ass, sat thereon; as it is written, Fear not, daughter of Sion: behold, thy King cometh, sitting on an ass’s colt. These things understood not his disciples at the first: but when Jesus was glorified, then remembered they that these things were written of him, and that they had done these things unto him. The people therefore that was with him when he called Lazarus out of his grave, and raised him from the dead, bare record. For this cause the people also met him, for that they heard that he had done this miracle. The Pharisees therefore said among themselves, Perceive ye how ye prevail nothing? behold, the world is gone after him.
(Tr. li. 1) See how great was the fruit of His preaching, and how large a flock of the lost sheep of the house of Israel heard the voice of their Shepherd: On the next day much people that were come to the feast, when they heard that Jesus was coming to Jerusalem, took branches of palm trees. The branches of palms are songs of praise, for the victory which our Lord was about to obtain by His death over death, and His triumph over the devil, the prince of death, by the trophy of the cross.