|Easton's Bible Dictionary|
Poured out, the "captain of the host of Hadarezer" when he mustered his vassals and tributaries from beyond "the river Euphrates" (2 Samuel 10:15-18); called also Shophach (1 Chronicles 19:16).
Int. Standard Bible Encyclopedia
sho'-bak (shobhakh; Sobak): Captain of the Syrian host (2 Samuel 10:16, 18); but "Shophach" (shophakh) in 1 Chronicles 19:16, 18.
Shobach (2 Occurrences)
2 Samuel 10:16 Hadadezer sent, and brought out the Syrians who were beyond the River: and they came to Helam, with Shobach the captain of the army of Hadadezer at their head. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
2 Samuel 10:18 The Syrians fled before Israel; and David killed of the Syrians the men of seven hundred chariots, and forty thousand horsemen, and struck Shobach the captain of their army, so that he died there. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)