The 3rd Commandment
Westminster Shorter Catechism
Q. 53. What is the third commandment? The third commandment is: You shall not misuse the name of the LORD your God, for the LORD will not hold him guiltless who misuses his name.
Q. 54. What does the third commandment require? The third commandment requires the holy and reverent use of God’s names, titles, qualities, regulations, word, and works.
Q. 55. What does the third commandment forbid? The third commandment forbids our treating as unholy or abusing anything God uses to make himself known.
Q. 56. What is the reason for the third commandment? The reason for the third commandment is that the Lord our God will not allow those who break this commandment to escape his righteous judgement, although they may escape punishment from men.