The "lord" promises to deal with certain nations .... but doesn't.
"And I will send an angel before thee; and I will drive out the Canaanite, the Amorite, and the Hittite, and the Perizzite, the Hivite, and the Jebusite.
"Now these are the nations which the Lord left ... the Canaanites, Hittites, and Amorites, and Perizzites, and Hivites, and Jebusites.
Did Jesus tell his desciples everything?
15:15 Henceforth I call you not servants; for the servant knoweth not what his lord doeth: but I have called you friends; for all things that I have heard of my Father I have made known unto you.
16:12 I have yet many things to say unto you, but ye cannot bear them now.