4 Bible Verses about Swearing Being Forbidden

Never use the name of Jehovah your God in a false and evil way. Jehovah will make sure that anyone who is false, evil, careless and vain with his name will be punished.

Do not swear falsely by my name, so as to profane the name of your God. I am Jehovah.

I tell you, offer no promises at all, not by heaven, because it is God's throne.

Above all things, my brothers do not swear by heaven, or by earth, or by any other oath. Let your Yes be Yes and your No be No. That way you will not fall under judgment.