​Q47. Which is the third commandment?

A. The third commandment is, “Thou shalt not take the name of the Lord thy God in vain; for the Lord will not hold him guiltless that takes his name in vain.”

Q48. What is required in the third commandment?

A. The third commandment requires the holy and reverent use of God’s names (Psa 29:2), titles, attributes (Rev 15:3-4), ordinances (Ecc 5:1), Word (Psa 138:2 ...