A whore's forehead

(Thomas Brooks, "The Privy Key of Heaven" 1665)

"You have a whore's forehead, you refuse to be
 ashamed!" Jeremiah 3:3

"Are they ashamed of their loathsome conduct? No,
 they have no shame at all! They do not even know
 how to blush!" Jeremiah 6:15

They had sinned away shame--instead of being ashamed of
sin. Continuance in sin had quite banished all sense of sin
and all shame for sin; so that they would not allow nature
to draw her veil of blushing before their great abominations.
How applicable these scriptures are to the present time, I
will leave the prudent reader to judge.

But what does the prophet do, now that they were as bold in
sin, and as shameless as so many harlots; now that they were
grown up to that height of sin and wickedness; now that they
were above all shame and blushing; now that they were grown
so proud, so hardened, so obstinate, so rebellious, so bent on
self-destruction--that no mercies could melt them or allure them,
nor any threatenings or judgments could in any way terrify them
or stop them? The prophet goes into a corner, he retires into the
most secret places, and there he weeps bitterly; there he weeps
as if he were resolved to drown himself in his own tears. "I will
weep in secret because of your pride; my eyes will weep bitterly,
overflowing with tears." Jeremiah 13:17

In the times wherein we live, hell seems to be broken loose, and
men turned into incarnate devils! Soul-damning wickednesses
walk up and down the streets with a whore's forehead, without
the least check or restraint.