Every place that the sole of your foot shall tread upon, that have I given unto you, as I said unto Moses. From the wilderness and this Lebanon even unto the great river, the river Euphrates, all the land of the Hittites, and unto the great sea toward the going down of the sun, shall be your coast. There shall not any man be able to stand before thee all the days of thy life: as I was with Moses, so I will be with thee: I will not fail thee, nor forsake thee.
Here Joshua recounts how God told him that he'd given his people everything that lies between Lebanon and the Euphrates River, including the region inhabited by the Hittites (which is simply the middle area in Syria between the other two landmarks).

This is a very large area for Joshua's tribe to conquer, and contains many other groups already living there, but God tells them not to worry, he's already sworn the land to them (and to Moses and the rest of the older generation before them) and they'll be dividing the land amongst their children in no time. To emphasize his point again, God tells him that "there shall not any man be able to stand before thee all the days of thy life."
So that's a pretty straightforward prophecy, and one specific enough that we can easily check into how it actually played out for the Israelites. As it turns out, we don't have to look any further than the bible to read how the Israelites' conquest turned out.
Joshua 15:63
As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out; but the Jebusites dwell with the children of Judah at Jerusalem unto this day.
Joshua 16:10
And they drave not out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites unto this day, and serve under tribute.
Joshua 17:12-13
Yet the children of Manasseh could not drive out the inhabitants of those cities; but the Canaanites would dwell in that land. Yet it came to pass, when the children of Israel were waxen strong, that they put the Canaanites to tribute, but did not utterly drive them out.
Judges 1:21
And the children of Benjamin did not drive out the Jebusites that inhabited Jerusalem; but the Jebusites dwell with the children of Benjamin in Jerusalem unto this day.
Judges 1:27-36
Neither did Manasseh drive out the inhabitants of Bethshean and her towns, nor Taanach and her towns, nor the inhabitants of Dor and her towns, nor the inhabitants of Ibleam and her towns, nor the inhabitants of Megiddo and her towns: but the Canaanites would dwell in that land. And it came to pass, when Israel was strong, that they put the Canaanites to tribute, and did not utterly drive them out. Neither did Ephraim drive out the Canaanites that dwelt in Gezer; but the Canaanites dwelt in Gezer among them. Neither did Zebulun drive out the inhabitants of Kitron, nor the inhabitants of Nahalol; but the Canaanites dwelt among them, and became tributaries. Neither did Asher drive out the inhabitants of Accho, nor the inhabitants of Zidon, nor of Ahlab, nor of Achzib, nor of Helbah, nor of Aphik, nor of Rehob: But the Asherites dwelt among the Canaanites, the inhabitants of the land: for they did not drive them out. Neither did Naphtali drive out the inhabitants of Bethshemesh, nor the inhabitants of Bethanath; but he dwelt among the Canaanites, the inhabitants of the land: nevertheless the inhabitants of Bethshemesh and of Bethanath became tributaries unto them. And the Amorites forced the children of Dan into the mountain: for they would not suffer them to come down to the valley: But the Amorites would dwell in mount Heres in Aijalon, and in Shaalbim: yet the hand of the house of Joseph prevailed, so that they became tributaries. And the coast of the Amorites was from the going up to Akrabbim, from the rock, and upward.
Ouch... that's a whole lot of tribes who didn't seem to have much of a problem being "able to stand before thee" Joshua.
Too bad for Joshua, the bible's pretty clear on what happens to false prophets.
Revelations 20:10
And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.
So that's a pretty straightforward prophecy, and one specific enough that we can easily check into how it actually played out for the Israelites. As it turns out, we don't have to look any further than the bible to read how the Israelites' conquest turned out.
Joshua 15:63
As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out; but the Jebusites dwell with the children of Judah at Jerusalem unto this day.
Joshua 16:10
And they drave not out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites unto this day, and serve under tribute.
Joshua 17:12-13
Yet the children of Manasseh could not drive out the inhabitants of those cities; but the Canaanites would dwell in that land. Yet it came to pass, when the children of Israel were waxen strong, that they put the Canaanites to tribute, but did not utterly drive them out.
Judges 1:21
And the children of Benjamin did not drive out the Jebusites that inhabited Jerusalem; but the Jebusites dwell with the children of Benjamin in Jerusalem unto this day.
Judges 1:27-36
Neither did Manasseh drive out the inhabitants of Bethshean and her towns, nor Taanach and her towns, nor the inhabitants of Dor and her towns, nor the inhabitants of Ibleam and her towns, nor the inhabitants of Megiddo and her towns: but the Canaanites would dwell in that land. And it came to pass, when Israel was strong, that they put the Canaanites to tribute, and did not utterly drive them out. Neither did Ephraim drive out the Canaanites that dwelt in Gezer; but the Canaanites dwelt in Gezer among them. Neither did Zebulun drive out the inhabitants of Kitron, nor the inhabitants of Nahalol; but the Canaanites dwelt among them, and became tributaries. Neither did Asher drive out the inhabitants of Accho, nor the inhabitants of Zidon, nor of Ahlab, nor of Achzib, nor of Helbah, nor of Aphik, nor of Rehob: But the Asherites dwelt among the Canaanites, the inhabitants of the land: for they did not drive them out. Neither did Naphtali drive out the inhabitants of Bethshemesh, nor the inhabitants of Bethanath; but he dwelt among the Canaanites, the inhabitants of the land: nevertheless the inhabitants of Bethshemesh and of Bethanath became tributaries unto them. And the Amorites forced the children of Dan into the mountain: for they would not suffer them to come down to the valley: But the Amorites would dwell in mount Heres in Aijalon, and in Shaalbim: yet the hand of the house of Joseph prevailed, so that they became tributaries. And the coast of the Amorites was from the going up to Akrabbim, from the rock, and upward.
Ouch... that's a whole lot of tribes who didn't seem to have much of a problem being "able to stand before thee" Joshua.

Revelations 20:10
And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.