Westminster Shorter Catechism – Lord’s Day 29
Q & A 53
Q Which is the third commandment?
A The third commandment is, You shall not take the name of the Lord your God in vain: for the Lord will not hold him guiltless that takes his name in vain.
Q & A 54
Q What is required in the third commandment?
A The third commandment requires the holy and reverent use of God’s names, titles,1 attributes,2 ordinances,3 Word,4 and works.*5
Q & A 55
Q What is forbidden in the third commandment?
A The third commandment forbids all profaning or abusing of anything whereby God makes himself known.*6
Q & A 56
Q What is the reason annexed to the third commandment?
A The reason annexed to the third commandment is, that however the breakers of this commandment may escape punishment from men, yet the Lord our God will not suffer them to escape his righteous judgment.*7
*1 Deuteronomy 10:20; Matthew 6:9.
*2 1 Chronicles 29:10-13; Revelation 15:3-4.
*3 Acts 2:42; 1 Corinthians 11:27-28.
*4 Psalm 138:2; Revelation 22:18-19.
*5 Psalm 107:21-22; Revelation 4:11.
*6 Leviticus 19:12; Matthew 5:33-37; James 5:12.
*7 Deuteronomy 28:58-59; 1 Samuel 3:13; 1 Samuel 4:11.