Dom Prosper Guéranger:
The Lessons from the Prophet Isaias are interrupted today also, and a Homily on the Gospel of the Mass is read in their place. As this Gospel is repeated in the Mass of the fourth Sunday of Advent, which is tomorrow, we will for the present omit it and be satisfied with mentioning the reason of the same Gospel being assigned to the two days. The primitive custom in the Roman Church was to hold Ordinations in the night between Saturday and Sunday, just as Baptism was administered to the Catechumens in the night between Holy Saturday and Easter Sunday. The ceremony took place towards midnight, and Sunday morning was always far advanced before the termination so that the Mass of Ordination was considered as the Mass of Sunday itself. Later on, discipline relaxed, and these severe vigils were given up. The Ordination Mass, like that of Holy Saturday, was anticipated. And, as the fourth Sunday of Advent and the second of Lent had not hitherto had a proper Gospel, since they had not had a proper Mass, it was settled about the tenth or eleventh century, that the Gospel of the Mass of Ordinations should be repeated in the special Mass of the two Sundays in question.
Gospel – Luke iii. 1‒6
Now in the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate being governor of Judea, and Herod being tetrarch of Galilee, and Philip his brother tetrarch of Judea, and the country of Trachonitis, and Lysanias tetrarch of Abilina; Under the high priests Annas and Caiphas; the word of the Lord was made unto John, the son of Zachary, in the desert. And he came into all the country about the Jordan, preaching the baptism of penance for the remission of sins; as it was written in the book of the sayings of Isaiah the prophet: “A voice of one crying in the wilderness: Prepare ye the way of the Lord, make straight his paths. Every valley will be filled; and every mountain and hill will be brought low; and the crooked will be made straight; and the rough ways plain; And all flesh will see the salvation of God.”
Praise be to you, O Christ.
Homily – Saint Gregory the Great:
The date at which the Forerunner of our Redeemer entered on his public office of preaching is indicated to us by the name of the ruler of the Roman Commonwealth, and by those of the princes of Palestine. The time of his preaching is indicated by these names because he came as the Fore-runner of Him who was to be the Redeemer of some Jews and many Gentiles. Moreover in the enumeration of these worldly monarchs there is a foreshadowing of the fact that the Gentiles were about to be gathered into one, and the Jews to be scattered abroad in punishment of their unbelief. In the whole heathen Commonwealth we find the title of one Emperor, but in the small kingdom of Judaea are mentioned four masters.