22 For we know that the whole creation groans and labors with birth pangs together until now.
23 Not only that, but we also who have the firstfruits of the Spirit, even we ourselves groan within ourselves, eagerly waiting for the adoption, the redemption of our body.
All creation groans because it is subject to vanity. It has a sense of birth pains waiting for the new creation to arrive.
The Holy Spirit is the first fruit of the full harvest from the cross — not that we get part of Him, but that He is the down-payment of the liberty and glory that is coming for the children of God and creation.
Redemption of our bodies — For in this we groan, earnestly desiring to be clothed upon with our house which is from heaven (2 Corinthians 5:2).
For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ: Who shall change our vile body, that it may be fashioned like unto His glorious body, according to the working whereby He is able even to subdue all things unto Himself (Philippians 3:20-21).
Just as a newborn baby cries, so the newborn child of God groans because of his separation from the Lord, and because he is not yet in the state for which he has been created. — Barnhouse, page 181.