THE HOLY BIBLE Darby
Exodus (Author Moses)
20:7Thou shalt not idly utter the name of Jehovah thy God; for Jehovah will not hold him guiltless that idly uttereth his name.
Leviticus (Author Moses)
19:12And ye shall not swear by my name falsely, and profane the name of thy God: I am Jehovah.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.