2. Mose 20:7

The Third Word, "Thou shalt not take the name of Jehovah thy God in vain," is closely connected with the former two. Although there is no God beside Jehovah, the absolute One, and His divine essence cannot be seen or conceived of under any form, He had made known the glory of His nature in His name (Exo 3:14., Exo 6:2), and this was not to be abused by His people. שׁם נשׁא does not mean to utter the name (נשׁא never has this meaning), but in all the passages in which it has been so rendered it retains its proper meaning, "to take up, life up, raise;" e.g., to take up or raise (begin) a proverb (Num 23:7; Job 27:1), to lift up a song (Psa 81:3), or a prayer (Isa 37:4). And it is evident from the parallel in Psa 24:4, "to lift up his soul to vanity," that it does not mean "to utter" here. שׁוא does not signify a lie (שׁקר), but according to its etymon שׁאה, to be waste, it denotes that which is waste and disorder, hence that which is empty, vain, and nugatory, for which there is no occasion. The word prohibits all employment of the name of God for vain and unworthy objects, and includes not only false swearing, which is condemned in Lev 19:12 as a profanation of the name of Jehovah, but trivial swearing in the ordinary intercourse of life, and every use of the name of God in the service of untruth and lying, for imprecation, witchcraft, or conjuring; whereas the true employment of the name of God is confined to "invocation, prayer, praise, and thanksgiving," which proceeds from a pure, believing heart. The natural heart is very liable to transgress this command, and therefore it is solemnly enforced by the threat, "for Jehovah will not hold him guiltless" (leave him unpunished), etc.

All things being prepared for the solemn promulgation of the divine law, we have, in this chapter, I. The ten commandments, as God himself spoke them upon mount Sinai (v. 1-17), as remarkable a portion of scripture as any in the Old Testament. II. The impressions made upon the people thereby (Exo 20:18-21). III. Some particular instructions which God gave privately to Moses, to be by him communicated to the people, relating to his worship (Exo 20:22, etc.).

20:7 In Hebrew, one’s name connotes nature and character (see study note on 3:13-22). To make the name of God empty (NLT, misuse) is to do anything that makes him appear insignificant or worthless. One way to do this is to invoke his name in an oath we do not mean to keep. But there are other, even more significant ways to bring shame on God’s name (see Num 20:12; Amos 2:7; cp. Matt 6:9).