Theistic evolution tries to marry the biblical text to the modern account of origins. The seam that keeps splitting is Adam.
Some of the most sincere believers you will ever meet hold to theistic evolution — the view that God is the Author of life, but that He created through the long evolutionary processes mainstream science describes, including the emergence of humanity from earlier forms. Their motive is usually honest and even admirable: they do not want the faith to look at war with the evidence, and they want to worship a God big enough to work through vast time.
This is an in-house conversation among Christians, and it deserves to be handled without caricature. So let me state the view at its strongest and then test it where it actually strains — not at biology first, but at the biblical text. Because the deepest problem with theistic evolution is not scientific. It is Adam.
Why Adam Is Not Negotiable
The New Testament does not treat Adam as a symbol of humanity in general. It treats him as a specific man whose one act reshaped the human race — and it builds the gospel on that footing.
Therefore, just as through one man sin entered into the world, and death through sin, and so death spread to all men, because all sinned—
Romans 5:12 (NASB1995)
“Through one man.” Paul’s entire argument depends on a real, historical individual standing at the head of the race. And he does not leave Adam alone; he pairs him with Christ as the two representative heads of humanity.
For since by a man came death, by a man also came the resurrection of the dead. For as in Adam all die, so also in Christ all will be made alive.
1 Corinthians 15:21–22 (NASB1995)
The parallel is load-bearing. If Adam is a myth, the logic wobbles: the second Adam is only as historically solid as the first. Paul stakes the reality of the resurrection on the reality of the man in the garden. You cannot quietly dissolve one without weakening the other.
To be fair, not every theistic evolutionist denies a historical Adam. Some propose that God selected or endowed a real pair as humanity’s covenant head at some point in the evolutionary line. That is a serious attempt to keep Paul’s argument intact, and it should be acknowledged rather than mocked. But it runs straight into the second, harder problem.
The Problem of Death Before Sin
Read Romans 5:12 again and watch the order carefully: sin entered, and then death through sin. In the biblical account, death is an intruder — the wage and consequence of human rebellion, not a feature of the world God called “very good.”
But evolution as an account of origins runs on death. It requires hundreds of millions of years of struggle, predation, disease, and extinction to shape life into its current forms. In that framework, mountains of death precede the first human by ages. And that is the seam that splits: Scripture says death came into the human world through sin, while the evolutionary timeline requires death to be the ancient, ordinary engine that produced humanity in the first place.
Nevertheless death reigned from Adam until Moses, even over those who had not sinned in the likeness of the offense of Adam, who is a type of Him who was to come.
Romans 5:14 (NASB1995)
Death “reigned from Adam” — Paul dates the reign of death from a man, not from the dawn of biology. This is not a peripheral detail a believer can trim away. It touches what the cross undoes. If death is simply the good and normal way God has always made things, then the last enemy Christ defeats was never really an enemy at all.
What Is Actually at Stake
Let me be careful and clear here. A person can hold theistic evolution and still love Christ, trust the Scriptures, and be genuinely saved. This is not a test of whether someone belongs to Jesus. It is a question of whether a system can bear the weight the Bible places on it, and where the pressure will eventually show.
The pressure shows at three joints. First, the historical Adam, on whom Paul hangs the doctrine of sin and the doctrine of Christ. Second, the entry of death, which Scripture ties to sin and evolution ties to the deep past. Third, the image of God — the biblical claim that humanity is a deliberate, direct creation bearing God’s likeness, not merely the most recent branch on a tree that could as easily have grown another way.
So also it is written, “The first MAN, Adam, BECAME A LIVING SOUL.” The last Adam became a life-giving spirit.
1 Corinthians 15:45 (NASB1995)
“The first man, Adam” and “the last Adam” stand together in one sentence. The whole shape of redemption is one representative man undoing what another representative man did. Loosen the first and you have not modernized the gospel — you have pulled a thread the gospel is woven from.
The Resolution
So where does this leave the believer who feels the pull of the scientific consensus and the pull of the text at the same time? Not with a demand to switch off your mind, and not with a license to file Genesis under fiction. It leaves you with a question of authority: when the reigning account of origins and the plain claims of Scripture pull against each other at the very point where the gospel is anchored, which one gets to define reality?
The Christian answer has always been that the Word of the Creator interprets the world, not the other way around. That does not make you anti-science; it makes you a person who lets the text speak on the questions the text was given to answer — where death came from, why you need a Savior, and who Adam was.
And this is where the doctrine turns to good news. There really was a first man, and in him we really died. But there is also a last Adam, and in Him all who believe are really made alive. The historical Adam is not a museum piece to defend for its own sake. He is the dark backdrop against which the second Adam shines — the One who entered the death we earned and walked back out of it, so that what reigned from Adam would not reign over you.
Teaching the Word. Watching the Times.
— SmithForChrist