1 Kings 16:17

And Omri went up from Gibbethon ["The expression, 'went up,' accurately marks the ascent of the army from the Shephelah, where Gibbethon was situated, to the hill country of Israel, on the edge of which Tirzah stood" (Rawlinson)], and all Israel [see on 1 Kings 16:16 ] with him, and they besieged Tirzah. [It is probable that they arrived before the city on the sixth or seventh day after the assassination of Elah. This period would just allow sufficient time for the news of the conspiracy to travel to Gibbethon and for the march of the army.]