Theological error, idolatry, and sin are serious matters that cannot be ignored because they are a constant threat to the unity of God’s people. In this passage, we see the necessity of pursuing the peace and purity of the church.

Sermon Outline:

I. Because the LORD is God, We Must Cling to Him in Wholehearted Devotion

II. Because the LORD is God, We Must Pursue the Purity of the Church

III. Because the LORD is God, We Must Pursue the Peace of the Church

Sermon Discussion Questions:

1. The word “cling” used in Joshua’s instructions is the same word used to describe how a husband and wife should hold fast to each other in marriage. What does it look like practically to “cling to God with loyalty, faithfulness, and affection” in the midst of busy daily life? What threatens to pull your affection away from Him?

2. The altar built by the eastern tribes was misunderstood as rebellion. Can you recall a time when you misjudged someone’s motives (or were misjudged yourself)? What would it look like for you to be slower to assume and quicker to ask questions in those situations?

3. The western tribes feared the altar represented idolatry because sin spreads and affects the whole community. In what ways have you seen sin (whether your own or others’) impact your family, church, or community? What does “guarding the purity of the church” look like in practice?

4. When the misunderstanding was cleared, Israel rejoiced that “the LORD is in our midst” (v. 31). How does pursuing peace with one another help us experience and display God’s presence today?

5. How does this central confession that “The LORD is God” give us unity as believers even when we disagree about lesser matters? How could remembering this confession change the way you approach conflict?