How do we know that justification is a gift from God?

Ephesians 2:8-9 clearly indicated that salvation and justification are entirely unmerited gifts from God. This means that no one can earn their standing before God through works or personal merit; rather, it is through the grace of God that a person is saved. As stated in Romans 4, if justification were based on works, it would be a debt owed rather than a gift of grace. Hence, we see that justification by faith not only honors God’s justice but also showcases His infinite mercy and love for sinners.