Joshua 7:5

7:5 The men of Ai killed about thirty-six of them and chased them from in front of the city gate all the way to the fissures and defeated them on the steep slope. The people’s courage melted away like water.

Joshua 7:11-12

7:11 Israel has sinned; they have violated my covenantal commandment! They have taken some of the riches; they have stolen them and deceitfully put them among their own possessions. 7:12 The Israelites are unable to stand before their enemies; they retreat because they have become subject to annihilation. I will no longer be with you, unless you destroy what has contaminated you.