Maybe a few comparative translations will help...
And not only they, but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, to wit, the redemption of our body. Romans 8:23-KJV
And not only the creation, but we ourselves too, who have and enjoy the firstfruits of the [Holy] Spirit [a foretaste of the blissful things to come] groan inwardly as we wait for the redemption of our bodies [from sensuality and the grave, which will reveal] our adoption (our manifestation as God’s sons). Romans 8:23-AMP
And not only the creation, but we ourselves, who have the firstfruits of the Spirit, groan inwardly as we wait eagerly for adoption as sons, the redemption of our bodies. Romans 8:23-ESV
Not only the world, but we also ·have been waiting with pain inside us [groan within ourselves]. We have the Spirit as the ·first part of God’s promise [firstfruits; as the first crops confirmed the future harvest, so the Spirit’s presence confirms believers’ final salvation]. So we are [eagerly] waiting for ·God to finish making us his own children [our adoption], which means ·our bodies will be made free [the redemption of our bodies]. Romans 8:23-EXB
And not only this, but also we ourselves, having the first fruits of the Spirit, even we ourselves groan within ourselves, waiting eagerly for our adoption as sons, the redemption of our body. Romans 8:23-NASB
Notice, it is us who are waiting the adoption, not God. With God, it is a done deal.