What is the difference between predestination and free will?

The difference between predestination and free will lies in their emphasis on God's sovereignty versus human autonomy. Predestination holds that God unilaterally determines who will be saved based on His grace and purpose, as seen in Ephesians 1:5. In contrast, the concept of free will suggests that individuals possess the ability to choose their own salvation. However, from a Reformed perspective, it is recognized that true free will is only exercised when God’s irresistible grace enables a person to respond positively to the gospel. Ultimately, predestination underscores that salvation is a divine work, rather than human effort.