It is typical to hear divine grace defined as "God's undeserved favor," but this does not capture the idea communicated here in Eph 2 or in other places in Paul. As this whole passage shows, God's grace, which is emphasized here by putting it first in the colon* (v. 8a), is actually God's favor granted to those who deserve his wrath (v. 3). It is not just undeserved, as if the people whom God befriends were neutral. It is act of immense favor bestowed on those who lie under God's just condemnation as transgressors and sinners. Hence, a better quick definition is: "God's favor despite human demerit."Ephesians, Evangelical Exegetical Commentary (Bellingham, WA: Lexham Press, 2015), 159–160.