1 Chronicles 18:6
Then David put garrisons in Syriadamascus; and the Syrians became David’s servants, and brought gifts. Thus the Lord preserved David whithersoever he went. (1 Chronicles 18:6)
Garrisons.
 The word for “garrisons” is not present in the Hebrew text of Chronicles but is found in 2 Sam. 8:6, as well as in the LXX, Syriac, and Targums of the Chronicles text.
 
David’s Wars With Ammon and Syria
After subduing several nations, David sent Joab against the Ammonites because of insult to envoys. Ammon summoned help from several districts of Syria.