John Gill Commentary Joshua 2:3

"And the king of Jericho sent unto Rahab, saying, Bring forth the men that are come to thee, that are entered into thy house; for they are come to search out all the land." — Joshua 2:3 (ASV)

And the king of Jericho sent unto Rahab
Not merely because she kept a public house, or being a prostitute had often strangers in it, and so conjectured that the men he had notice of might be there; but he sent upon certain information that they were seen to go in there, as it follows:

saying, bring forth the men that are come to thee ;
not to commit lewdness with her, though this is the sense some Jewish commentators give; but this neither agrees with the character of the men Joshua had chosen for this purpose, nor answers any end of the king to suggest; nor can it be thought that Rahab would so openly and freely own this, as in (Joshua 2:4) : but what is meant by the phrase is explained in the following clause,

which are entered into thine house :
in order to lodge there that night:

for they be come to search out all the country ;
so it was suspected, nor was the suspicion groundless.