Mercy and Grace are often confused. While the terms have similar meaning, grace and mercy are not the same. To summarize the difference: Mercy is God not punishing us our sins deserve, and Grace is God blessing us despite the fact that we do not deserve it. Mercy is deliverance from judgment. Grace is extending kindness to the unworthy.
According to the bible, we all have sinned (Ecclesiastes 7:20; Romans 3:23; 1 John 1:8). As a result to that sin, we all deserve death and eternal judgement in the lake of fire (Revelation 20:12-15). With that in mind, every day we live is an act of God’s mercy. If God gave us all what we deserve, we would all be, right now, condemned for eternity. In Psalm 51:1-2, David cries out, have mercy on me, O God, according to your unfailing love; according to your great compassion blot out my transgressions. Wash away all my iniquity and cleanse me from my sin. A plea to God for mercy is asking him to withhold the judgment we deserve and instead grant us the forgiveness we in no way have earned.
We deserve nothing from God. God does not owe us anything. Anything good that we experience is as a result of the grace of God (Ephesians 2:5). Grace is simply defined as unmerited favor. God favors, or gives us good things that we do not deserve and could never earn. Rescued from judgment by God mercy, grace is anything and everything we received beyond the mercy. Common grace refers to the sovereign grace which God bestows on all mankind regardless of their spiritual standing before him.
Let us all then approach the throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need.