That is,
We should fear and love God, and not curse, swear, conjure, lie, or deceive by His name, but call upon His name in every time of need, and worship Him with prayer, praise, and thanksgiving.
38. What is meant by the "name" of God?
1. The usual names given to Him in the Bible.
2. His nature and attributes and all that by which He is especially known, such as His Word, sacraments, and works.
39. When is the name of God taken in vain?
When it is used in a thoughtless and mocking manner and without devotion and reverence.
40. How is this done?
1. When we use God's name or Word in jesting or as a by-word.
2. When we find fault with anything God has done.