Tuesday of the Second week of Advent

First Reading: Isaiah 40:1-11
Responsorial Psalm: Psalms 96:1-2, 3, 10, 11-12, 13
Gospel: Matthew 18:12-14

First Reading
Isaiah 40:1-11
Comfort, comfort my people, says your God. Speak tenderly to Jerusalem, and cry to her that her warfare is ended, that her iniquity is pardoned, that she has received from the Lord’s hand double for all her sins. A voice cries: “In the wilderness prepare the way of the Lord; make straight in the desert a highway for our God. Every valley shall be lifted up, and every mountain and hill be made low; the uneven ground shall become level, and the rough places a plain. And the glory of the Lord shall be revealed, and all flesh shall see it together, for the mouth of the Lord has spoken.” A voice says, “Cry!” And I said, “What shall I cry?” All flesh is grass, and all its beauty is like the flower of the field. The grass withers, the flower fades when the breath of the Lord blows on it; surely the people are grass. The grass withers, the flower fades, but the word of our God will stand for ever. Go on up to a high mountain, O Sion, herald of good news; lift up your voice with strength, O Jerusalem, herald of good news; lift it up, fear not; say to the cities of Judah, “Behold your God!” Behold, the Lord God comes with might, and his arm rules for him; behold, his reward is with him, and his recompense before him. He will tend his flock like a shepherd; he will gather the lambs in his arms; he will carry them in his bosom, and gently lead those that are with young.

The word of the Lord.

Responsorial Psalm
Psalms 96:1-2, 3, 10, 11-12, 13
R.The Lord our God comes with might.

O sing a new song to the Lord; sing to the Lord, all the earth. O sing to the Lord; bless his name. Proclaim his salvation day by day.
R.The Lord our God comes with might.

Tell among the nations his glory, and his wonders among all the peoples. Say to the nations, “The Lord is king.” he will judge the peoples in fairness.
R.The Lord our God comes with might.

Let the heavens rejoice and earth be glad; let the sea and all within it thunder praise. Let the land and all it bears rejoice.
R.The Lord our God comes with might.

Then will all the trees of the wood shout for joy at the presence of the Lord, for he comes, he comes to judge the earth. He will judge the world with justice; he will govern the peoples with his truth.
R.The Lord our God comes with might.

Gospel
Matthew 18:12-14
At that time: Jesus said to his disciples, “What do you think? If a man has a hundred sheep, and one of them has gone astray, does he not leave the ninety-nine on the mountains and go in search of the one that went astray? And if he finds it, truly, I say to you, he rejoices over it more than over the ninety-nine that never went astray. So it is not the will of my Father who is in heaven that one of these little ones should perish.”

The Gospel of the Lord.