Reference: Silla
Easton
a highway; a twig, only in 2Ki 12:20. If taken as a proper name (as in the LXX. and other versions), the locality is unknown.
Fausets
2Ki 12:20. "The house of Mille which goeth down to Silla." Evidently in the valley below Millo, but "the Mille" is the phrase elsewhere.(See MILLO.)
Hastings
The servants of king Joash smote him 'at the house of Millo [read rather 'at Beth-Millo'] on the way that goeth down to Silla' (2Ki 12:20). Where or what Silla may have been there is nothing to show. The Septuagint reads Gaalla or Gaallad.
R. A. S. Macalister.
Morish
Sil'la
Place alluded to when Joash was murdered. It was apparently somewhere near Jerusalem. 2Ki 12:20.
Smith
Sil'la
(a highway). "The house of Millo which goeth down to Silla" was the scene of the murder of King Joash.
What or where Sills was is entirely matter of conjecture. Some have suggested the pool of Siloam.