From then on Esau hated Jacob because of his father's blessing. Esau said to himself, “Soon the time will come when I'll mourn my father's death. Then I'll kill my brother Jacob!”
When they got to the threshing floor of Atad, on the other side of the Jordan, they wept loudly in sorrow. Joseph held a seven-day ceremony of mourning for his father there.
Then David said to the messenger, “Tell Joab this: ‘Don't be upset about this, for the sword destroys people at random. Press on with your attack against the town and conquer it.’ Encourage him by telling him this.”
So Joab sent a messenger to Tekoa to bring back a wise woman who lived there. He told her, “Pretend to be a mourner. Put on clothes for mourning, and don't use any scented oils. Be like a woman who has been in mourning for the dead a long time.
Then David ordered Joab and everyone who was there, “Tear your clothes, put on sackcloth, and mourn for Abner.” King David himself followed the body as it was carried to the grave.