2 Kings 16:9

the king of Assyria went up against Damascus In the Assyrian records it appears that Tiglath-pileser went first against Damascus in b. c. 733, but not being successful came again next year and then reduced the city. (Schrader, p. 152.) Cf. Amos 1:3-5.

the people of it captive See above on 2 Kings 15:29.

to Kir The LXX. does not represent these words, and we have no certain data to guide us to the locality intended. Isaiah, who lived close amid all these events, places Elam and Kir in close conjunction (2 Kings 22:6). Elam was in lower Mesopotamia, Kir was therefore most likely in the same district. Rawlinson suggests that it is a variant for Kishor Cush(Susiana) which was just on the south of Elam.

and slew Rezin Thus making himself entire master of Syria. Hence, as we see immediately, Tiglath-pileser appears to have stayed some time in Damascus.