Exodus 20:5-7

Amplified Bible

⁵You shall not worship them nor serve them; for I, the Lord your God, am a jealous (impassioned) God [^[a]demanding what is rightfully and uniquely mine], visiting (avenging) the iniquity (sin, guilt) of the fathers on the children [that is, calling the children to account for the sins of their fathers], to the third and fourth generations of those who hate Me,^(A) ⁶but showing graciousness and steadfast lovingkindness to thousands [of generations] of those who love Me and keep My commandments.

⁷“You shall not take the name of the Lord your God in vain [that is, irreverently, in false affirmations or in ways that impugn the character of God]; for the Lord will not hold guiltless nor leave unpunished the one who ^[b]takes His name in vain [disregarding its reverence and its power].

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Footnotes

Exodus 20:5 God does not tolerate the transfer of the honor and worship that is due Him to any other being or object.
Exodus 20:7 Using the name of God in a casual, frivolous way establishes a mindset that diminishes and dishonors the omnipotent God. Using the name of God to abuse, manipulate, or deceive invites judgment.