Mishpatim - Shishi
A Sneak Peek at the Book of Joshua
G-d says that He will send an angel to lead the people into the land. (We'll meet him in the Book of Joshua, chapter 5.) The people should follow all he says because the angel will brook no insubordination. If they listen, then G-d's angel will mow down the Jews' enemies.
When they enter the land, they must eradicate the idols and serve only G-d, Who will make them healthy and prosperous.