I was listening to lectures from a Roman Catholic apologist and he talked about how we can’t say that human beings are children or sons of God by nature because that is pantheism. I think I have also heard Lutherans say that we can’t call human beings children of God, but from our tradition, it would be because this is reserved for believers, not fallen man in general.
Interestingly, the Scriptures go so far as to say we are all not just sons of God, but gods ourselves. But it does not shy away from calling all men sons of God either, as Paul points out to the Athenians:
“…he is not far from any one of us. ‘For in him we live and move and have our being.’ As some of your own poets have said, ‘We are his offspring.’
Therefore since we are God’s offspring, we should not think that the divine being is like gold or silver or stone—an image made by human design and skill…”
Those Biblical writers don’t seem so concerned with the philosophical categories some of our theologians want to push on us. Sit down Aristotle, huh? We should be thinking a bit more like a child: the brotherhood of man indeed! (but note the freight that comes with that phrase, OK?). We are all one blood and bought with the blood of the one Son, who though Divine (valid category!) took on created flesh (as the Eastern Orthodox say, “Salvation is created”) for our salvation.
I have heard one man say that hell will be full of forgiven sinners. In like fashion, it will also be full of children of God.