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 forever.
Get you up to a high mountain, O Zion, 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.
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.
Advent is a season of proclamation. In Isaiah a voice cries that all flesh will see the glory of the Lord. A voice commands others to cry out concerning the fate of man and word of the Lord. The herald of good news is to proclaim with strength the coming of the Lord. In Matthew the shepherd goes and looks for the lost.
Advent is a proclamation of comfort, peace, and forgiveness. But it is not a peace without cost. There is a proclamation of judgment. Sins are repaid double. All the proud are laid low. Man is nothing. God comes with recompense and reward. God comes as a shepherd to gather, carry, and lead, his flock. Through the Spirit of Christ, the Shepherd continues to go out seeking the lost; gathering, protecting, and leading the flock.