So Esau hated Jacob because of the blessing his father had given to his brother. Esau said privately, “The time of mourning for my father is near; then I will kill my brother Jacob!”
When they came to the threshing floor of Atad on the other side of the Jordan, they mourned there with very great and bitter sorrow. There Joseph observed a seven day period of mourning for his father.
David said to the messenger, “Tell Joab, ‘Don’t let this thing upset you. There is no way to anticipate whom the sword will cut down. Press the battle against the city and conquer it.’ Encourage him with these words.”
So Joab sent to Tekoa and brought from there a wise woman. He told her, “Pretend to be in mourning and put on garments for mourning. Don’t anoint yourself with oil. Instead, act like a woman who has been mourning for the dead for some time.
David instructed Joab and all the people who were with him, “Tear your clothes! Put on sackcloth! Lament before Abner!” Now King David followed behind the funeral bier.