How we cite our quotes:
Quote #1
I will set up over them one shepherd, my servant David, and he shall feed them: he shall feed them and be their shepherd. And I, the Lord, will be their God, and my servant David shall be prince among them; I, the Lord, have spoken. (NRSV 34:23-24)
And I will set up one shepherd over them, and he shall feed them, even my servant David; he shall feed them, and he shall be their shepherd. And I the Lord will be their God, and my servant David a prince among them; I the Lord have spoken it. (KJV 34:23-24)
God says he'll grant his people their dream of perfect rulership: David as king again. But, in this case, it probably refers to a righteous descendant of David or, at least, to someone as good as David. David's always held up as the ideal monarch, even though he had his share of lapses, like killing off Bathsheba's husband so he could marry her. But he was repentant and anyway, he wrote those amazing Psalms.
Quote #2
I will make with them a covenant of peace and banish wild animals from the land, so that they may live in the wild and sleep in the woods securely. I will make them and the region around my hill a blessing; and I will send down the showers in their season; they shall be showers of blessing. The trees of the field shall yield their fruit, and the earth shall yield its increase. They shall be secure on their soil; and they shall know that I am the Lord, when I break the bars of their yoke, and save them from the hands of those who enslaved them. (NRSV 34:25-27)
And I will make with them a covenant of peace, and will cause the evil beasts to cease out of the land: and they shall dwell safely in the wilderness, and sleep in the woods. And I will make them and the places round about my hill a blessing; and I will cause the shower to come down in his season; there shall be showers of blessing. And the tree of the field shall yield her fruit, and the earth shall yield her increase, and they shall be safe in their land, and shall know that I am the Lord, when I have broken the bands of their yoke, and delivered them out of the hand of those that served themselves of them. (KJV 34:25-27)
God promises a perfectly domesticated land to his people: most of the attributes of wildness will be weeded out. The country will be more perfectly adjusted to human needs. What a turnaround from the previous 34 chapters, right? It's things like this that made The Onion wonder about God's state of mind.
Quote #3
Thus says the Lord God: On the day that I cleanse you from all your iniquities, I will cause the towns to be inhabited, and the waste places shall be rebuilt. The land that was desolate shall be tilled, instead of being the desolation that it was in the sight of all who passed by. And they will say, This land that was desolate has become like the garden of Eden; and the waste and desolate and ruined towns are now inhabited and fortified. Then the nations that are left all around you shall know that I, the Lord, have rebuilt the ruined places, and replanted that which was desolate; I, the Lord, have spoken, and I will do it. (NRSV 36:33-36)
Thus saith the Lord God; In the day that I shall have cleansed you from all your iniquities I will also cause you to dwell in the cities, and the wastes shall be builded. And the desolate land shall be tilled, whereas it lay desolate in the sight of all that passed by. And they shall say, This land that was desolate is become like the garden of Eden; and the waste and desolate and ruined cities are become fenced, and are inhabited. Then the heathen that are left round about you shall know that I the Lord build the ruined places, and plant that that was desolate: I the Lord have spoken it, and I will do it. (KJV 36:33-36)
God promises to make the land like Eden—which makes sense, in a way, because the people will (supposedly) have overcome the same tendencies towards disobedience that got humanity expelled from Eden in the first place. The House of Israel does this a lot. There's an ongoing cycle of disobedience and reconciliation.