Jonadab said to him, “Lie down on your bed and pretend you’re sick. When your father comes to see you, say to him, ‘Please let my sister Tamar come and give me something to eat. Let her prepare food in my presence so I can watch and eat from her hand.’”

So Joab sent someone to Tekoa to bring a clever woman from there. He told her, “Pretend to be in mourning: dress in mourning clothes and don’t put on any oil. Act like a woman who has been mourning for the dead for a long time.

Those who hate the Lord
would pretend submission to Him;
their doom would last forever.

The son who gathers during summer is prudent;
the son who sleeps during harvest is disgraceful.

About Edom, this is what the Lord of Hosts says:

Is there no longer wisdom in Teman?
Has counsel perished from the prudent?
Has their wisdom rotted away?