4 Bible Verses about Swearing Being Forbidden

Thou shalt not idly utter the name of Jehovah thy God; for Jehovah will not hold him guiltless that idly uttereth his name.

And ye shall not swear by my name falsely, and profane the name of thy God: I am Jehovah.

But I say unto you, Do not swear at all; neither by the heaven, because it is the throne of God;

But before all things, my brethren, swear not, neither by heaven, nor by the earth, nor by any other oath; but let your yea be yea, and your nay, nay, that ye do not fall under judgment.