"See, I am sending my angel before you to lead you safely to the land I have prepared for you.
Pay attention to him, and obey all of his instructions. Do not rebel against him, for he will not forgive your sins. He is my representative -- he bears my name
But if you are careful to obey him, following all my instructions, then I will be an enemy to your enemies, and I will oppose those who oppose you.
For my angel will go before you and bring you into the land of the Amorites, Hittites, Perizzites, Canaanites, Hivites, and Jebusites, so you may live there. And I will destroy them.
Do not worship the gods of these other nations or serve them in any way, and never follow their evil example. Instead, you must utterly conquer them and break down their shameful idols.
"You must serve only the LORD your God. If you do, I will bless you with food and water, and I will keep you healthy.
There will be no miscarriages or infertility among your people, and I will give you long, full lives.
"I will send my terror upon all the people whose lands you invade, and they will panic before you.
I will send hornets ahead of you to drive out the Hivites, Canaanites, and Hittites.
But I will not do this all in one year because the land would become a wilderness, and the wild animals would become too many to control.
I will drive them out a little at a time until your population has increased enough to fill the land.
And I will fix your boundaries from the Red Sea to the Mediterranean Sea, and from the southern deserts to the Euphrates River. I will help you defeat the people now living in the land, and you will drive them out ahead of you.
References for Exodus 23:31
"Make no treaties with them and have nothing to do with their gods.
Do not even let them live among you! If you do, they will infect you with their sin of idol worship, and that would be disastrous for you."