4 Bible Verses about Swearing Being Forbidden

“You shall not take the name of the Lord your God in vain [that is, irreverently, in false affirmations or in ways that impugn the character of God]; for the Lord will not hold guiltless nor leave unpunished the one who takes His name in vain [disregarding its reverence and its power].

You shall not swear [an oath] falsely by My name, so as to profane the name of your God; I am the Lord.

But I say to you, do not make an oath at all, either by heaven, for it is the throne of God;

But above all, my fellow believers, do not swear, either by heaven or by earth or with any other oath; but let your yes be [a truthful] yes, and your no be [a truthful] no, so that you may not fall under judgment.