Mercy and grace are closely related. While the terms have similar meanings, grace and mercy are not exactly the same. Mercy has to do with kindness and compassion; it is often spoken of in the context of God’s not punishing us as our sins deserve. Grace includes kindness and compassion, but also carries the idea of bestowing a gift or favor. It may help to view mercy as a subset of grace. In Scripture, mercy is often equated with a deliverance from judgment (e.g., Deuteronomy 4:30–31; 1 Timothy 1:13), and grace is always the extending of a blessing to the unworthy.
According to the Bible, we have all sinned (Ecclesiastes 7:20; Romans 3:23; 1 John 1:8). As a result of that sin, we all deserve death (Romans 6:23) and eternal judgment in the lake of fire (Revelation 20:12–15). Given what we deserve, 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.” Pleading for God’s mercy is asking Him to show kindness and withhold the judgment we deserve.
We deserve nothing good from God. God does not owe us any good thing. What good we experience is a result of the grace of God (Ephesians 2:5). Grace is simply defined as “unmerited favor.” God favors us—He shows us approval and kindness—in blessing us with good things that we do not deserve and could never earn. Common grace refers to the blessings that God bestows on all of mankind regardless of their spiritual standing before Him, while saving grace is that special blessing whereby God sovereignly bestows unmerited divine assistance upon His elect for their regeneration and sanctification.
Mercy and grace are evident in the salvation that is available through Jesus Christ. We deserved judgment, but in Christ we receive mercy from God and are delivered from judgment. In Christ we receive eternal salvation, forgiveness of sins, and abundant life (John 10:10)—all gifts of grace. Our response to the mercy and grace of God should be to fall on our knees in worship and thanksgiving. Hebrews 4:16 declares, “Let us 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.”