Matthew Poole and continuators on Romans 8:21

21 Because the creature it self also shall be delivered from the bondage of corruption, into the glorious liberty of the children of God .

If this verse be understood of the Heavens, and the Earth, and the things therein, the meaning is, that the Creatures in their kind, and according to their capacity, shall be partakers of that Liberty and freedom, which in the Children of God, is accompanied with unspeakable Glory, they shall not partake with▪ the Saints in Glory, but of that Liberty which in the Saints hath great Glory attending it, and superadded to it. The Creature at the day of Judgment shall be restored (as before) to that condition of liberty which it had in its first Creation; as when it was made at first, it was free from all Vanity, Bondage and Corruption, so it shall be again at the time of the general Resurrection. vid. Act. 3.19, 21. 2 Pet. 3.13. Those that by the Creation, would understand the Gentile World, give the sense of this verse. That the very Heathens also shall by the Gospel and Grace of Christ be rescued from those courses of Sin and Corruption, to which they have been long enslaved, into that glorious condition not only of free men, redeemed by Christ out of their bondage to sin and Satan, but even of the Sons of God to have right to his favour, and that never fading inheritance.