Kemtal didn’t think it was possible to fail gym class, but in high school he was on the verge of doing so. That experience — and what he had to do to avoid failing — taught him something important about motivation, enduring, and pursuing a goal. It’s something we can all learn from, especially when we consider what God has called us to do.

Kemtal didn’t think it was possible to fail gym class, but in high school he was on the verge of doing so. That...