Romans 8:23
"We ourselves groan inwardly as we wait patiently for our adoption to sonship, the redemption of our bodies."
Thoughts from Charles Spurgeon --
"Even in this world, saints are God's children, but the only way people will discover this is by certain moral characteristics.
The adoption is not displayed; the children are not yet openly declared. Among Romans a private adoption might be kept secret for a time, but later there would be a public adoption, when the child was brought before the authorities, its old clothes removed, and the father would give new clothing suitable for its new status in life.
We are not yet clothed in the apparel of heaven's royal family; we are still wearing in the flesh and blood just what we wear as children of Adam.
Can't you imagine that a child taken from the lowest ranks in society and adopted by a Roman senator, would say to himself, 'I long for the day when I shall be publicly adopted, Then I shall discard these poor clothes and dress in clothes that depict my senatorial rank.' Glad for what he has already received, but he still yearns for the fulness of what has been promised him.
So it is with us today; we are waiting until we can put on our fine clothes and are declared as the children of God for all to see. We are young nobles who have not yet worn our crowns. We are young brides, and the marriage day has not arrived."