John Gill Commentary 2 Kings 7:13

"And one of his servants answered and said, Let some take, I pray thee, five of the horses that remain, which are left in the city (behold, they are as all the multitude of Israel that are left in it; behold, they are as all the multitude of Israel that are consumed); and let us send and see." — 2 Kings 7:13 (ASV)

And one of his servants answered and said, let some take, I pray thee, five of the horses that remain, which are left in the city , &c.] Not having died through the famine as the rest:

behold, they are as all the multitude of Israel that are left in it; behold, I say, they are even as the multitude of Israel that are consumed ; signifying, there was a like consumption among the horses as among the people, and they that remained were starving as they were; so that should those horses, and the men, fall into the hands of the Syrians, and perish, it would be no great matter; the loss would not be much, since they must perish if they continue in the city: according to the Vulgate Latin version, these five horses were all that were left:

and let us send and see ; whether the report of the lepers is true or not.