How do we know Christ's atoning death is essential?

The Transfiguration illustrates the profound importance of Christ's atoning death, as shown through the conversation between Jesus, Moses, and Elijah. They spoke of His departure, underscoring that even before it occurred, there was a clear recognition of its necessity. The Old Testament believers understood that salvation hinged upon the promised sacrifice of the Messiah. This pivotal moment in biblical history reveals that the foundation of hope and peace has always been centered upon the death of Christ, reaffirming its essential role in the plan of salvation.