The Easter season brings not one but three prominent releases of Christian films. I Can Only Imagine, a biopic based on the wildly popular Christian song of the same title, surprised observers with a $17 million opening weekend and added another $21 million since. Later this week, the next entry in the God’s Not Dead franchise, A Light in the Darkness, opens with John Corbett and Tatum O’Neal in the cast. Both of these cover modern-day dilemmas facing Christians, but Paul Apostle of Christ takes audiences back to the roots of the faith by focusing on its most prolific...