The parable of the workers in the vineyard (Matthew 20:1-16) shows that God is gracious and merciful, not fair. He grants us blessings we don’t deserve.
Romans 6:23 (NIV)
For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.
We receive his grace not because we are worthy, but because he loves us. I hate to think what my present and eternal life would look like if God was fair instead of gracious.