Here are what (I think) are some logical statements:
Using profanity does not make you braver or more honorable.
Not using profanity does not weaken you.
Speaking for myself, I am offended by profanity, BUT I don’t think I am better or “more holy” than anyone. In fact, as a Christian, I know that I am a wretched sinner with no intrinsic righteousness.
From Ephesians 5:
“But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God’s holy people. Nor should there be obscenity, foolish talk or coarse joking, which are out of place, but rather thanksgiving.”
Not bad, but I would alter it:
Using profanity does not make you braver or more honorable, but it can make you weaker and less honorable.
Not using profanity does not make you weaker, but may make you more honorable and effective.