Parallel
1 Chronicles 11:7
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἐκάθισεν Δαυιδ ἐν τῇ περιοχῇ διὰ τοῦτο ἐκάλεσεν αὐτὴν πόλιν Δαυιδ
So David took up residence in the fortress; that is why it was called the City of David.