According to 1 John 5:18, the mark of the one who is born of God is that he ____.

• A. will not attempt sin
• B. knows all truth
• C. does not sin
• D. never stumbles

Answer: (C)

The main idea tested is that being born of God changes how a person lives: a person born of God does not continue in a pattern of sin. The text says plainly that “whosoever is born of God sinneth not,” which is why the correct completion is that he does not sin. This isn’t saying a believer never sins at all in a moment, but that habitual sinning isn’t the mark of one who is truly born of God; the Spirit at work in him enables him to resist a lifestyle of sin. The other options miss the exact wording of the verse or the implied meaning: they talk about trying to sin, knowing all truth, or never stumbling, none of which captures the precise claim of the Scripture.