1 Kings 20:12

And it came to pass, when Benhadad heard this message (as he was drinking, he and the kings in the pavilions),.... Though it was at noon, or before, 1 Kings 20:16, which shows that he and they were addicted to intemperance:

that he said unto his servants; some of the principal officers of his army:

set yourselves in array; prepare for battle, betake yourselves to your arms, invest the city at once, and place the engines against it to batter it down:

and they set themselves in array against the city; besieged it in form, at least prepared for it; for it seems after all that it was not properly done.