Westminster Larger Catechism

Q. 113. What are the sins forbidden in the third commandment?

A. The sins forbidden in the third commandment are, the not using of God’s name as is required; and the abuse of it in an ignorant, vain, irreverent, profane, superstitious, or wicked mentioning or otherwise using his titles, attributes, ordinances, or works, by blasphemy, perjury; all sinful cursings, oaths, vows, and lots; violating of our oaths and vows, if lawful, and fulfilling them, if of things unlawful; murmuring and quarreling at, curious prying into, and misapplying of God’s decrees and providences; misinterpreting, misapplying, or anyway perverting the Word, or any part of it, to profane jests, curious or unprofitable questions, vain janglings, or the maintaining of false doctrines; abusing it, the creatures, or anything contained under the name of God, to charms, or sinful lusts and practices; the maligning, scorning, reviling, or anywise opposing of God’s truth, grace, and ways; making profession of religion in hypocrisy, or for sinister ends; being ashamed of it, or a shame to it, by unconformable, unwise, unfruitful, and offensive walking, or backsliding from it.