Silla appears in the assassination account of King Joash, who was killed 'at Beth-millo, on the way that goes down to Silla.' The phrase is obscure and the location uncertain. Some scholars suggest emending the text to read 'highway' (mesillah) instead of 'Silla,' making it a common noun rather than a proper name. Others propose reading 'the descent of Millo' without the geographic name. Ancient versions don't clarify matters. What's clear is that the text locates Joash's murder at a specific site associated with Beth-millo, though the precise geography has been lost to historical memory.