What does the Bible say about natural man?

In scripture, particularly in Romans 8:7, we find that the carnal mind is enmity against God and is not subject to His law. This idea is echoed throughout the book of Judges, which illustrates how the children of Israel repeatedly turned away from God's commands and worshipped other gods. This narrative reflects the fallen state of humanity that relies on its own judgment, leading to chaos and judgment. The consistent theme is that without the grace of God, humanity cannot attain righteousness and is left to its own devices, which leads to ruin.