Liturgical Colour : Purple/Violet or White (Our Lady of Guadalupe)
Isaiah 40 : 1-11
Be comforted, My people, be strengthened, says your God. Speak to the heart of Jerusalem, proclaim to her that her time of bondage is at an end, that her guilt has been paid for, that from the hand of YHVH she has received double punishment for all her iniquity.
A voice cries, “In the wilderness prepare the way for YHVH. Make straight in the desert a highway for our God. Every valley will be raised up; every mountain and hill will be laid low. The stumbling blocks shall become level and the rugged places smooth. The glory of YHVH will be revealed, and all mortals together will see it; for the mouth of YHVH has spoken.”
A voice says, “Cry.” and I say, “What shall I cry?” “All flesh is grass, and all its beauty as the flower of the field. The grass withers, the flower wilts, when the breath of YHVH blows upon it. The grass withers, the flower fades, but the word of our God will forever stand.”
Go up onto the high mountain, messenger of Good News to Zion, lift up your voice with strength, fear not to cry aloud when you tell Jerusalem and announce to the cities of Judah : Here is your God! Here comes YHVH Sabaoth with might; His strong arm rules for Him; His reward is with Him, and here before Him is His booty. Like a shepherd He tends His flock : He gathers the lambs in His arms, He carries them in His bosom, gently leading those that are with young.
Alternative reading (Mass of Our Lady of Guadalupe)
Isaiah 7 : 10-14 and Isaiah 8 : 10c
Once again YHVH addressed Ahaz, “Ask for a sign from YHVH your God, let it come either from the deepest depths or from the heights of heaven.” But Ahaz answered, “I will not ask, I will not put YHVH to the test.”
Then Isaiah said, “Now listen, descendants of David. Have you not been satisfied trying the patience of people, that you also try the patience of my God? Therefore the Lord Himself will give you a sign : The Virgin is with Child and bears a Son and calls His Name Immanuel, for God-is-with-us.”