John Gill Commentary 1 Kings 20:6

"but I will send my servants unto thee to-morrow about this time, and they shall search thy house, and the houses of thy servants; and it shall be, that whatsoever is pleasant in thine eyes, they shall put it in their hand, and take it away." — 1 Kings 20:6 (ASV)

Yet I will send my servants unto thee tomorrow about this
time
He gave him twenty four hours to consider of it:

and they shall search thine house, and the houses of thy servants ;
the royal palace, and the houses of the noblemen, and even of every of his subjects in Samaria:

and it shall be, that whatsoever is pleasant (or desirable) in thine
eyes, they shall put it in, their hand, and take it away ;
not be content with what should be given, but search for more; and if any in particular was more desirable to the possessor than anything else, that should be sure to be taken away; which was vastly insolent and aggravating.