What does the gainsaying of Korah teach us?

Korah's rebellion against Moses and Aaron highlights a fundamental disregard for God's established authority. He questioned the leadership appointed by God, asserting that all the congregation was holy, which led to catastrophic consequences. The ground opened up and swallowed Korah and his followers, signifying divine judgment for their defiance. This serves as a crucial lesson for Christians about the importance of respecting God-given authority within the church. It reminds believers that rejecting spiritual leaders whom God has placed over them can lead to spiritual peril and disqualification from God's blessings.