The Holy Bible says,
But now you must rid yourselves of ... filthy language from your lips.
(Colossians 3:8).

“Their mouths are full of cursing and bitterness.” (Romans 3:14).

LENGUA

Simbolo del habla. Los santos deben controlar su lengua, o sea, su forma de hablar.
Este vocablo tambien se refiere a los idiomas y a los pueblos. Finalmente, se doblara
toda rodilla, y jurara todo lengua a Dios

ISAIAH 45:23
By myself I have sworn, my mouth has uttered in all interity a word that will not be revoked:
Before me every knee will bow by me every tongue will swear.

ROMANS 14:11
It is written: '''As surely as I live,' says the Lord, every knee will bow before me; every tongue will confess to God.'''

I do not think there is any amongst us that are so pure as to not swear once in awhile. Did not jesus curse the olive tree and it died.One may adopt swearing as a way to ground oneself. And I did not meet a carpenter that never swore when a finger was hot by their own hammer.