In Jeremiah 48:37-39, God promises to destroy the pride of Moab. Moab will display every sign of mourning:

"For every head shall be bald, and every beard clipped;
On all the hands shall be cuts, and on the loins sackcloth--
A general lamentation
On all the housetops of Moab,
And in its streets;
For I have broken Moab like a vessel in which is no pleasure," says the LORD.
"They shall wail:
"How she is broken down!
How Moab has turned her back with shame!'
So Moab shall be a derision
And a dismay to all those about her."