The word "grace" in biblical parlance can, like forgiveness, repentance, regeneration, and salvation, mean something as broad as describing the whole of God's activity toward man or as narrow as describing one segment of that activity. An accurate, common definition describes grace as the unmerited favor of God toward man.

“Grace” is the most important concept in the Bible, Christianity, and the world. Grace is the love of God shown to the unlovely; the peace of God given to the restless; the unmerited favor of God. It is most clearly expressed in the promises of God revealed in Scripture and embodied in Jesus Christ.