[Makes me feel like I live in America and can exercise my right of free speech.]
Remember, words mean something.
EXODUS 20:3
You shall not take the name of the Lord your God in vain, for the Lord will not hold him guiltless who takes His name in vain.
You clearly don’t know the definition of “vain”...
Vain:
adjective
1.
having or showing an excessively high opinion of one’s appearance, abilities, or worth.
“their flattery made him vain”
synonyms: conceited, narcissistic,