And you, who once were alienated and hostile in mind, doing evil deeds, he has now reconciled in his body of flesh by his death, in order to present you holy and blameless and above reproach before him… (Colossians 1:21-22, ESV)
God transforms us. This is no tiny truth, but it might seem so if we fail to understand our natural condition.
Without His work in us, each person either simply ignores or denies God’s existence or actively, deliberately hates God. This is the human condition, and we see examples of each all around. Famous atheists write books claiming God is a delusion, while others flat-out proclaim their hatred of him. The rest of us write no books, but silently hold God in one form of contempt or another, as we choose to make Him irrelevant in our lives by placing our own desires and pleasures at the center of our plans and ambitions. Our alienation and hostility towards Him may be soft and amorphous, but they are no less certain just because it is unexpressed.
Our alienation and hostility towards God is not benign. Like a cancer of thought in our minds, it inevitably spreads to every area of our lives. Eventually it reproduces itself into the tumors of godless actions. We cheat, lie, steal, hate, and take, sometimes with pangs of guilt, but often with no remorse. We excuse every bad thing we do by claiming justification, weakness, weariness, or fear. When we do so, we reveal that our thinking is that God does not really know, does not really care, or does not really exist.