2 Kings 12:20
And his servants arose, and made a conspiracy, and slew Joash in the house of Millo, which goeth down to Silla.
And his servants arose,.... This was after he had slain Zechariah the son of Jehoiada, who reproved him for his idolatry; and after a second expedition of the king of Syria, who came to Jerusalem, and spoiled it, and left Jehoash diseased, as is recorded in 2 Chronicles 24:23,
and made a conspiracy; not to get the kingdom into their hands, for his son succeeded him, but to avenge the death of Zechariah;
and slew Jehoash in the house of Millo, which goeth down to Silla; these are both names of places; perhaps the latter is mentioned, to distinguish this Bethmillo from Millo in Zion; or rather that itself is meant, and described by the descent from it to a causeway, as Silla may signify, which led to the royal palace.