It is often said that grace is God’s
unmerited favor. But it might be
successfully argued that mercy fits
that definition better. Mercy is what
we don’t deserve. It is given to all who
confess their sin and surrender their life
to Jesus Christ.

Mercy is defined as that benevolence, mildness or
tenderness, mildness, pity or compassion, and clemency
but exercised only towards offenders. It is a distinguishing
attribute of our Lord. Eternal life is is the fruit of mercy.

Grace on the other hand, is given to the humble (James 4:16). God is opposed to the proud. He gives mercy to both the proud and the humble. But grace, given to the humble, is the empowering presence of God enabling the Christian to do and be what God has called them to be.

David declares in Psalm 119, “..great are your mercies O Lord...”.

Paul expounds in his letter to the church at Ephesus (2:4) that “..God is rich in mercy, because of His great love with which He loved us, even when we were dead in our transgressions. He made us alive together with Christ (by grace you have been saved) and raised us up with Him and seated us with Him in the heavenly places in Christ Jesus..”

Jesus says, Matthew 5:7 "Blessed are the merciful, for they shall receive mercy.”