2 Samuel 10:2

Then said David, I will show kindness to Hanun the son of Nahash,.... Send him a friendly compliment of condolence on the death of his father:

as his father showed kindness unto me; when David was persecuted by Saul, he sent him aid, and invited him into his country for protection it may be, and some way or other showed respect unto him; though not out of real love and friendship to David, but in enmity to Saul, who had defeated him at Jabeshgilead, and had often wars with him: the Jews say o the particular kindness was, that when David left his father, mother, and brethren, with the king of Moab, he slew all but one, who fled to the king of the children of Ammon, and was by him saved alive:

and David sent to comfort him by the hand of his servants for his father; for the death of his father; to condole the loss of him, which was the custom of kings in friendship and alliance in former times, and still continues:

and David's servants came into the land of the children of Ammon; even to Rabbah, the metropolis of the nation, and the royal city, where the king kept his court.

o Tanchuma apud Jarchium in loc.