Why Israel Was Deceived

Joshua 9:22-27
 
22  And Joshua called for them, and he spake unto them, saying, Wherefore have ye beguiled us, saying, We are very far from you; when ye dwell among us? 
23  Now therefore ye are cursed, and there shall none of you be freed from being bondmen, and hewers of wood and drawers of water for the house of my God. 
24  And they answered Joshua, and said, Because it was certainly told thy servants, how that the LORD thy God commanded his servant Moses to give you all the land, and to destroy all the inhabitants of the land from before you, therefore we were sore afraid of our lives because of you, and have done this thing. 
25  And now, behold, we are in thine hand: as it seemeth good and right unto thee to do unto us, do. 
Jos 9:them not. 
27  And Joshua made them that day hewers of wood and drawers of water for the congregation, and for the altar of the LORD, even unto this day, in the place which he should choose.