For more on “What is Immerse?”, see https://www.simicovenant.org/messages/immerse-kingdoms

If you want to explore more about the book of Joshua, here are some helpful resources:

Undeceptions: But What About Canaan? Undeceptions is a podcast that Pastor Kurt highly recommends. It deals with important topics thoughtfully, candidly, and skillfully.

BEMA Podcast: The Hardest Story in the Bible (For Me)

The Lost World of the Israelite Conquest. Pastor Kurt says that is you REALLY want to understand this stuff and to do so in an approachable way, this is the book you should read.