What does the Bible say about the free grace of God?

Isaiah 57 emphasizes God's free and sovereign grace, declaring that salvation is solely the work of God from beginning to end. In this chapter, we see that God is the one who revives the humble and contrite spirit, demonstrating His willingness to heal and restore those He chooses. The gospel reveals God's righteousness, highlighting that human works cannot save us. Therefore, we are reminded that it is only by God’s sovereign grace that we are saved, and we can take comfort in His promises.