A select few tribes of Israel want to separate and stay in a different land. Moses becomes furious at this idea since it undermines Israel's unity, fractures their military, discourages the other tribes, and angers God. By staying in the land east of the Jordan River, which needed to be protected, these tribes could not fully commit to God's plan in the Promised Land. As a result, they faced constant warfare to defend the land. They committed a great error: desiring to abandon their fellow believers in carrying out Gods critical mission. God's current critical mission is the great commission we have all been called to. The great ruth we can follow is to participate in God's kingdom, and by faith we trust that what is coming is better than what is here now.