DAY 302
CHALLENGE
“There is no such thing as mortal sin.”
DEFENSE
The concept of mortal sin is clearly taught in Scripture.
First, the language of the doctrine is drawn from Scripture itself: “If any one sees his brother committing what is not a mortal sin, he will ask, and God will give him life for those whose sin is not mortal. There is sin which is mortal; I do not say that one is to pray for that. All wrong-doing is sin, but there is sin which is not mortal” (1 John 5:16–17).
The phrase here translated “mortal” (Greek, pros thanaton) literally means “unto death.” It can be understood to mean a sin that causes spiritual death, a sin so grave that it causes physical death, or grave sin continued to the point of death. In any case, the text envisions the possibility of a Christian (a “brother”) sinning this way.
A full exegesis of this passage is beyond what we can cover, but the New Testament indicates Christians can commit sins costing them salvation. Paul warns: “Now I would remind you, brethren, in what terms I preached to you the gospel, which you received, in which you stand, by which you are saved, if you hold it fast—unless you believed in vain” (1 Cor. 15:1–2). This indicates it is possible for Christians to believe the gospel in vain. Here Paul names one cause for this—failure to adhere to the gospel.
Elsewhere he is more specific, saying: “Do not be deceived; neither the immoral, nor idolaters, nor adulterers, nor sexual perverts, nor thieves, nor the greedy, nor drunkards, nor revilers, nor robbers will inherit the kingdom of God” (1 Cor. 6:9–10). The fact that Paul felt the need to warn his Christian audience against deception on this indicates both that Christians can commit sins costing them salvation and that they could deceive themselves on this point.
Many similar New Testament passages could be cited, but we should note that the need to avoid mortal sin is stressed by our Lord: “If you would enter life, keep the commandments. . . . You shall not kill, You shall not commit adultery, You shall not steal, You shall not bear false witness, Honor your father and mother, and, You shall love your neighbor as yourself” (Matt. 19:17–19).