For Isaiah spoke thus concerning this period of a thousand years: "For there shall be a new heaven and a new earth, and they shall not remember the former things, nor shall they come into their heart, but they shall find gladness and exultation in it, even all that I create; for behold, I make Jerusalem an exultation and my people a gladness, and I will exult over Jerusalem and rejoice over my people. And no more shall the voice of weeping be heard in it, nor the voice of crying; nor shall there be there any more an infant who dies before his time, nor an old man who shall not fill out his span; for the young man shall be a hundred years old, and the sinner who dies, being a hundred years old, shall also be accursed."
"And they shall build houses and themselves inhabit them, and they shall plant vineyards and themselves eat their fruit. They shall not build and others inhabit, nor plant and others eat; for as the days of the tree of life shall the days of my people be, and the works of their labors they shall make to grow old. My chosen ones shall not labor in vain, nor bear children for a curse; for they shall be a seed righteous and blessed by the Lord, and their offspring with them. And it shall be that before they cry out, I will hear them; while they are still speaking, I will say: What is it? Then wolves and lambs shall feed together, and the lion shall eat straw like an ox, and the serpent shall eat earth like bread. They shall not harm nor destroy on my holy mountain, says the Lord."
"Now what is said in these words," I said, "namely, 'For as the days of the tree shall the days of my people be, and the works of their labors they shall make to grow old,' we have understood that it indicates a thousand years in a mystery. For just as it was said to Adam that 'in the day you eat of the tree, in that day you shall die,' we know that he did not complete a thousand years. And we have understood the saying, 'A day of the Lord is as a thousand years,' to gather together to this same point."
"And further, among us a certain man named John, one of the apostles of Christ, in a revelation that was made to him, prophesied that those who believed in our Christ would spend a thousand years in Jerusalem, and that after this the general—and, in a word, eternal—resurrection of all together would take place, and the judgment. Which our Lord also declared, that 'They shall neither marry nor be given in marriage, but shall be equal to the angels, being children of God by being children of the resurrection.'"