Romans 8:21

that the creation itself will also be freed from its bondage to decay [and gain entrance] into the glorious freedom of the children of God.

2 Peter 3:13

But in accordance with His promise we expectantly await new heavens and a new earth, in which righteousness dwells.

Acts 3:21

whom heaven must keep until the time for the [complete] restoration of all things about which God promised through the mouth of His holy prophets from ancient time.

Romans 8:19

For [even the whole] creation [all nature] waits eagerly for the children of God to be revealed.

Revelation 21:1

Then I saw a new heaven and a new earth; for the first heaven and the first earth had passed away (vanished), and there is no longer any sea.

Revelation 22:3-5

There will no longer exist anything that is cursed [because sin and illness and death are gone]; and the throne of God and of the Lamb will be in it, and His bond-servants will serve and worship Him [with great awe and joy and loving devotion];

Treasury of Scripture Knowledge

Summary

Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God.

Because

Into the glorious

Bible References

Because

2 Peter 3:13
But in accordance with His promise we expectantly await new heavens and a new earth, in which righteousness dwells.

Into the glorious

Romans 8:19
For [even the whole] creation [all nature] waits eagerly for the children of God to be revealed.
Revelation 22:3
There will no longer exist anything that is cursed [because sin and illness and death are gone]; and the throne of God and of the Lamb will be in it, and His bond-servants will serve and worship Him [with great awe and joy and loving devotion];