4 Bible Verses about Swearing Being Forbidden

"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.

Ye shall not swear by my name falsely, that thou defilest not the name of thy God; I am the LORD.

But I say unto you, Swear not at all; neither by heaven; for it is God's seat:

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