1 Kings 11:21

And when Hadad heard in Egypt that David slept with his fathers, and that Joab the captain of the host was dead [It comes out very significantly here what a name of terror Joab's had been in Edom and how deep was the impression which his bloody vengeance of a quarter of a century before had made] Hadad said to Pharaoh, Let me depart [Heb. send me away ] , that I may go to mine own country. [Rawlinson cites Herod. 3:132-137; 5:25, 35, 106, 107, to show that refugees at Oriental courts must obtain permission to leave them.]