2 Samuel 18:21
Then said Joab to Cushi, Go tell the king what thou hast seen. And Cushi bowed himself unto Joab, and ran.
Then said Joab to Cushi,.... The Ethiopian, or blackamoor; who either was an Ethiopian by birth and proselyted, or he was an Israelite of a black complexion, and therefore so called; and was judged a proper person by the general to carry such dismal news to the king, as he knew it would be. Some Jewish writers {a} take him to be the same with Cush the Benjaminite, in the title of the seventh psalm, Psalms 7:1; and that he is the same that told Joab he saw Absalom hanging in an oak, and declared that, if a thousand shekels of silver were offered him, he would not have put forth his hand against him, 2 Samuel 18:10; though some think this was one of the ten young men that waited on Joab, and by his orders slew Absalom; but it would have been dangerous for one of these to have carried the tidings, had he been known by David to have done it:
Go tell the king what thou hast seen: by which it should seem that he was present when Absalom was killed:
And Cushi bowed himself unto Joab; in reverence to him as his general, and in thankfulness for sending him on this errand:
and ran; as fast as he could.
{a} Pirke Eliezer, c. 53.