3rd commandment. 3️⃣
Against blasphemy:
Deuteronomy 5:11
[11]Thou shalt not take the name of the LORD thy God in vain: for the LORD will not hold him guiltless that taketh his name in vain.

Jesus forbade using the name of God or His Throne or His City in vain by taking an Oath:
Matthew 5:34-35
[34]But I say unto you, Swear not at all; neither by heaven; for it is God's throne:
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[35]Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King.
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He also warned that speaking against the Spirit of God is a...