Which action is described as incompatible with the 8th Commandment's guidance on truth-telling?

• A. Say bad words / cuss.
• B. Use God's name only in worship.
• C. Speak respectfully about God.
• D. Do not say false information about another person.

Answer: (D)

The action being tested is truth-telling and protecting others from falsehood. The 8th Commandment forbids bearing false witness, which means we should avoid sharing information that isn’t true about someone. Among the options, the one that best reflects this guidance is not saying false information about another person. That choice directly embodies truthful speech and safeguards a person’s reputation. The other options don’t address truthfulness at all: profanity, using God’s name only in worship, and speaking respectfully about God are about speech style or reverence, not about whether we tell the truth about others.