Everybody knows why a bride enters the nuptial chamber, but against him
who sullies his lips by talking about it, the decree for good, though of
seventy years' standing, shall be reversed into a decree for evil. Rav
Chasda says, "Whosoever disgraces his mouth (by evil communication),
Gehenna shall be deepened for him; for it is said in Prov. xxii. 14, 'A
deep pit for the mouth of strange words (immoral talk).'" Rav Nachman
bar Yitzchak says, "The same punishment will be inflicted on him who
listens to it and is silent; for it is said (Prov. xxii. 14), 'And he
that is abhorred of the Lord shall fall therein.'"
THE TALMUD, _Shabbath_, fol. 33, col. 1.