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Creation will be renewed one day, freed from corruption and illumined by God’s glory. - (RSVCE) note for Rev 21:1.
New Advent says the following on the new heaven and the new earth:
With the fulfilment of the sentence pronounced in the last judgment the relations and the dealings of the Creator with the creature find their culmination, are explained and justified. The Divine purpose being accomplished, the human race will, as a consequence, attain its final destiny. The reign of Christ over mankind will be the sequel of the General Judgment.
Against Heresies (St. Irenaeus) > Book V, Chapter 36 | New Advent:
Please see also:
- We do not know the time for the consummation of the earth and of humanity,1 nor do we know how all things will be transformed. As deformed by sin, the shape of this world will pass away;2 but we are taught that God is preparing a new dwelling place and a new earth where justice will abide,3 and whose blessedness will answer and surpass all the longings for peace which spring up in the human heart.4 Then, with death overcome, the sons of God will be raised up in Christ, and what was sown in weakness and corruption will be invested with incorruptibility.5 Enduring with charity and its fruits,6 all that creation7 which God made on man's account will be unchained from the bondage of vanity.
1. Cf. Acts 1:7.
2. Cf. 1 Cor. 7:31; St. Irenaeus, Adversus haereses, V, 36, PG, VIII, 1221.
3. Cf. 2 Cor. 5:2; 2 Pet. 3:13.
4. Cf. 1 Cor. 2:9; Apoc. 21:4-5.
5. Cf. 1 Cor. 15:42 and 53.
6. Cf. 1 Cor. 13:8; 3:14.
7. Cf. Rom. 8:19-21.