John Gills Exposition of the Bible Commentary - 2 Samuel 16:9
Then said Abishai the son of Zeruiah unto the king ,.... A sister's son of his, and a general in the army, who could not bear to hear the king abused in this manner: why should this dead dog curse my lord the king ? be suffered to do it with impunity; a "dog" he calls him, because of his vileness and baseness, and because of his impudence, and on account of his reproachful and abusive language, aptly signified by the snarling and barking of a dog; and a "dead" dog, as being useless,... read more
Matthew Henry's Complete Commentary - 2 Samuel 16:5-14
We here find how David bore Shimei's curses much better than he had borne Ziba's flatteries. By the latter he was brought to pass a wrong judgment on another, by the former to pass a right judgment on himself. The world's smiles are more dangerous than its frowns. Observe here, I. How insolent and furious Shimei was, and how his malice took occasion from David's present distress to be so much the more outrageous. David, in his flight, had come to Bahurim, a city of Benjamin in or near which... read more