Joshua 9:14-18

So the men [of Israel] took some of their own provisions [and offered them in friendship], and [foolishly] did not ask for the counsel of the LORD. Joshua made peace with them and made a covenant (treaty) with them, to let them live; and the leaders of the congregation [of Israel] swore an oath to them. It happened that three days after they had made a covenant (treaty) with them, the Israelites heard that they were [actually] their neighbors and that they were living among them. Then the sons of Israel set out and came to their cities on the third day. Now the cities [of the Hivites] were Gibeon and Chephirah and Beeroth and Kiriath-jearim. But the sons of Israel did not strike them because the leaders of the congregation had sworn to them by the LORD the God of Israel [to spare them]. And all the congregation murmured [expressing great dissatisfaction] against the leaders.