How do we know that man's free will is limited?

The concept of free will in the context of biblical theology is nuanced. According to Scripture, humanity is enslaved to sin, which radically affects the will. The natural inclination of the heart is toward sin, and without the regenerating work of the Holy Spirit, individuals cannot choose God or righteousness. They are spiritually dead in their trespasses, and only through God's mercy can their affections be changed to seek Him. This understanding aligns with the Reformed perspective, which emphasizes total depravity and the necessity of grace.