Ewin says that “no wrong act or sinful deed can ever affect the believer’s salvation. The sinner did nothing to merit God’s grace and likewise he can do nothing to demerit grace. True, sinful conduct always lessens one’s fellowship with Christ, limits his contribution to God’s work and can result in serious disciplinary action by the Holy Spirit.”
One problem with this argument is that this is not even how things work in everyday life. If another person gives us something as a grace—as a gift—and even if we did nothing to deserve it (though frequently gifts are given based on our having pleased the one bestowing the gift), it in no way follows that our actions are irrelevant to whether or not we keep the gift. We can lose it in all kinds of ways. We can misplace it, destroy it, give it to someone else, take it back to the store. We may even forfeit something we were given by later displeasing the one who gave it—as when a person has been appointed to a special position but is later stripped of that position on account of mismanagement.
The argument fares no better when one turns to Scripture, for one finds that Adam and Eve, who received God’s grace in a manner just as unmerited as anyone today, most definitely did demerit it—and lost grace not only for themselves but for us as well (cf. also Rom. 11:17-24). While the idea that what is received without merit cannot be lost by demerit may have a kind of poetic charm for some, it does not stand up when compared with the way things really work—either in the everyday world or in the Bible.
Regarding the issue of whether Christians have an “absolute” assurance of salvation, regardless of their actions, consider this warning Paul gave: “See then the kindness and the severity of God: severity toward those who have fallen, but God’s kindness to you, provided you continue in his kindness; otherwise you too will be cut off” (Rom. 11:22; see also Heb. 10:26–29, 2 Pet. 2:20–21).
