The answer is: Ai

Joshua 7:3 - If Joshua had prayed to God he would have known not to send the men into battle

The battle of Ai is a gripping story about pride and the importance of seeking divine guidance. Isn't it interesting how one misstep can lead to unexpected consequences? Joshua, a newfound leader of the Israelites, was riding high after the victory at Jericho, which he didn’t just walk into without guidance. Their smashing success led to some overconfidence. This conclusion didn’t just teach the army the power of prayer; it highlighted a fundamental principle about leadership—reminding us that following even a small hunch or turning instinct into prayer is, well... essential!

Following the defeat at Ai, Joshua was quick to realize his error—it shaped the way he commanded the Israelites afterwards. This mistake resonates in today’s world, reminding modern leaders (or anyone facing big decisions) the importance of reflection, humility, and counsel rather than just charging ahead.

In many ways, this narrative is a reminder of the “time in the wilderness”; Israel’s journey was not just about occupying land but understanding their relationship with the divine. The auscultation to invite God's perspective while calculating plans can often reveal overlooked details. Did you notice? Even in failure, Joshua turned back to what truly matters: earnestness in prayer and seeking comprehensive leadership. Not to forget—Achan’s sin, which brought about the defeat, underscores accountability in the community; together they carried the weight of decisions! Ultimately, what follows is a deeper appreciation for communication with the divine and its impacts in our lives.