Exodus 20:7

"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."

"And ye shall not swear by my name falsely, neither shalt thou profane the name of thy God: I am the LORD."

"But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation."

"And thou shalt swear, The LORD liveth, in truth, in judgment, and in righteousness; and the nations shall bless themselves in him, and in him shall they glory."

"This we will do to them; we will even let them live, lest wrath be upon us, because of the oath which we sware unto them."

"And the men said unto her, We will be blameless of this thine oath which thou hast made us swear."