What does the Bible teach about the nature of man concerning good and evil?

In Scripture, particularly in Romans 3:10-12, it is asserted that there is no one righteous, not even one. This underscores the fallen state of humanity, where individuals cannot claim true goodness in their natural state. Our perception of good and evil is marred by sin, and without being born again by the Spirit, one cannot discern true goodness. Understanding our fallen condition is crucial for recognizing our utter need for God's mercy and grace, which alone can remedy our inability to perform good works. Thus, it is God's transformative power that enables any true good to be performed through His people.