Justin Martyr, Dialogue with Trypho 81
For Isaiah spoke thus concerning this millennium: The heaven will be new and the earth new, and they will not remember the former things nor will these come to mind; instead they will find joy and gladness in what I create. For behold, I make Jerusalem a gladness and my people a joy, and I will rejoice over Jerusalem and be glad over my people. No longer will the sound of weeping be heard in it, nor the sound of crying. No longer will a youth die before his time, nor an old man who has not filled his days; for the boy will be a hundred years old, and the sinner who dies at a hundred years will be accursed. They will build houses and inhabit them; they will plant vineyards and eat their fruit. They will not build for others to inhabit, nor plant for others to eat; for as the days of the tree of life, so will be the days of my people, and the works of their hands will wear out. My chosen ones will not labor in vain, nor bear children for a curse; for they are a righteous and blessed seed of the Lord, and their offspring with them. Before they call, I will answer; while they are still speaking, I will say, 'What is it?' Then wolves and lambs will graze together, and the lion will eat straw like the ox, and dust will be the serpent's food. They will not do evil or destroy on all my holy mountain, says the Lord (Isaiah 65:17-25).
Concerning what was said in these words — 'As the days of the tree, so will be the days of my people, and the works of their labors will wear out' — we have understood that it signifies a thousand years in a mystery. For as it was said to Adam, 'On the day you eat from it you will die' (Genesis 2:17), we know that he did not complete a thousand years. We also understood the saying, 'A day of the Lord is like a thousand years' (Psalm 90:4; 2 Peter 3:8), as pointing to this. And later, among us, a man named John, one of Christ's apostles, prophesied in a revelation that those who believe in our Christ will spend a thousand years in Jerusalem. And after these things the universal and, in a word, eternal resurrection of all will take place together with judgment. Our Lord also said this: 'They neither marry nor are given in marriage, but are like angels in heaven, being children of God, children of the resurrection' (Luke 20:35-36).
Greek
Οὕτως γὰρ Ἡσαΐας περὶ τῆς χιλιονταετηρίδος ταύτης εἶπεν· Ἔσται γὰρ ὁ οὐρανὸς καινὸς καὶ ἡ γῆ καινή, καὶ οὐ μὴ μνησθῶσι τῶν προτέρων οὐδὲ μὴ ἐπέλθῃ αὐτῶν ἐπὶ τὴν καρδίαν, ἀλλ᾿ εὐφροσύνην καὶ ἀγαλλίαμα εὑρήσουσιν ἐν αὐτῇ, ὅσα ἐγὼ κτίζω· ὅτι ἰδοὺ ἐγὼ ποιῶ τὴν Ἱερουσαλὴμ ἀγαλλίαμα καὶ τὸν λαόν μου εὐφροσύνην, καὶ ἀγαλλιάσομαι ἐπὶ Ἰερουσαλὴμ καὶ εὐφρανθήσομαι ἐπὶ τῷ λαῷ μου. Καὶ οὐκέτι οὐ μὴ ἀκουσθῇ ἐν αὐτῇ φωνὴ κλαυθμοῦ οὐδὲ φωνὴ κραυγῆς, καὶ οὐ μὴ γένηται ἔτι ἐκεῖ ἄωρος ἡμέραις καὶ πρεσβύτης ὃς οὐκ ἐμπλήσει τὸν χρόνον αὐτοῦ· ἔσται γὰρ ὁ νέος υἱὸς ἑκατὸν ἐτῶν, ὁ δὲ ἀποθνήσκων ἁμαρτωλὸς υἱὸς ἑκατὸν ἐτῶν καὶ ἐπικατάρατος ἔσται. Καὶ οἰκοδομήσουσιν οἰκίας καὶ αὐτοὶ ἐνοικήσουσι, καὶ καταφυτεύσουσιν ἀμπελῶνας καὶ αὐτοὶ φάγονται τὰ γεννήματα αὐτῶν. Οὐ μὴ οἰκοδομήσωσι καὶ ἄλλοι κατοικήσουσι, καὶ οὐ μὴ φυτεύσωσι καὶ ἄλλοι φάγονται· κατὰ γὰρ τὰς ἡμέρας τοῦ ξύλου τῆς ζωῆς αἱ ἡμέραι τοῦ λαοῦ μου ἔσονται, τὰ ἔργα τῶν πόνων αὐτῶν παλαιώσουσιν. Οἱ ἐκλεκτοί μου οὐ μὴ πονέσουσιν εἰς κενὸν οὐδὲ τεκνοποιήσουσιν εἰς κατάραν· ὅτι σπέρμα δίκαιον καὶ εὐλογημένον ὑπὸ κυρίου ἔσονται, καὶ ἔγγονα αὐτῶν μετ᾿ αὐτῶν. Καὶ ἔσται πρὶν ἢ κεκράξαι αὐτοὺς ἐγὼ ἐπακούσομαι αὐτῶν· ἔτι λαλούντων αὐτῶν ἐρῶ· Τί ἐστι; Τότε λύκοι καὶ ἄρνες ἅμα βοσκηθήσονται, καὶ λέων ὡς βοῦς φάγεται ἄχυρα, ὄφις δὲ γῆν ὡς ἄρτον. Οὐκ ἀδικήσουσιν οὐδὲ λυμανοῦνται ἐπὶ τῷ ὄρει τῷ ἁγίῳ, λέγει κύριος . Τὸ οὖν εἰρημένον ἐν τοῖς λόγοις τούτοις, ἔφην· Κατὰ γὰρ τὰς ἡμέρας τοῦ ξύλου αἱ ἡμέραι τοῦ λαοῦ μου ἔσονται, τὰ ἔργα τῶν πόνων αὐτῶν παλαιώσουσι , νενοήκαμεν ὅτι χίλια ἔτη ἐν μυστηρίῳ μηνύει. Ὡς γὰρ τῷ Ἀδὰμ εἴρητο, ὅτι ᾗ δ᾿ ἂν ἡμέρᾳ φάγῃ ἀπὸ τοῦ ξύλου, ἐν ἐκείνῃ ἀποθανεῖται , ἔγνωμεν αὐτὸν μὴ ἀναπληρώσαντα χίλια ἔτη. Συνήκαμεν καὶ τὸ εἰρημένον, ὅτι Ἡμέρα κυρίου ὡς χίλια ἔτη , εἰς τοῦτο συνάγειν. Καὶ ἔπειτα καὶ παρ᾿ ἡμῖν ἀνήρ τις, ᾧ ὄνομα Ἰωάννης, εἷς τῶν ἀποστόλων τοῦ Χριστοῦ, ἐν ἀποκαλύψει γενομένῃ αὐτῷ χίλια ἔτη ποιήσειν ἐν Ἱερουσαλὴμ τοὺς τῷ ἡμετέρῳ Χριστῷ πιστεύσαντας προεφήτευσε . καὶ μετὰ ταῦτα τὴν καθολικὴν καί, συνελόντι φάναι, αἰωνίαν ὁμοθυμαδὸν ἅμα πάντων ἀνάστασιν γενήσεσθαι καὶ κρίσιν. Ὅπερ καὶ ὁ κύριος ἡμῶν εἶπεν, ὅτι Οὔτε γαμήσουσιν οὔτε γαμηθήσονται, ἀλλὰ ἰσάγγελοι ἔσονται, τέκνα τοῦ θεοῦ τῆς ἀναστάσεως ὄντες .