Ashes on one's forehead are hardly a mark of "righteousness" - they are a public admission that one is a sinner.
“they are a public admission that one is a sinner.”
“Catholics place the mark, which is often done in the shape of a cross, on their foreheads as a sign of repentance.”
Two questions;
Is it a sign of repentance or not?
What do you believe is the meaning of “God and sin no more.”
oops, not “God” but “GO and sin no more.”