David gat him a name - Became a very celebrated and eminent man. The Targum has it, David collected troops; namely, to recruit his army when he returned from smiting the Syrians. His many battles had no doubt greatly thinned his army.
The valley of salt - Supposed to be a large plain abounding in this mineral, about a league from the city of Palmyra or Tadmor in the wilderness.
The Syrians - Read the Edomites, as in marginal references (compare Psalm 60:1-12 title), and as the context 2 Samuel 8:14 requires. For a further account of this war of extermination with Edom, see 1 Kings 11:15-16. The war with Edom was of some duration, not without serious reverses and dangers to the Israelites (2 Samuel 8:2 note). The different accounts probably relate to different parts of the campaign.