In theology, just as in battle, some hills are worth dying on and others are not. But how do we know which ones? When should doctrine divide, and when should unity prevail? Just as a medic on a battlefield treats the severely wounded first and then moves on to the less serious injuries, we must prioritize doctrine in order of importance. Pastor Gavin Ortlund implores us to cultivate humility as we prioritize doctrine into four ranks–essential, urgent, important, and unimportant–so that we will be as effective as possible at advancing the gospel in our time.