Message 6, Post Tenebras, Lux:

The phrase “post tenebras lux” (after darkness, light), a rallying cry of Protestant Reformers, refers to the rediscovery of biblical truth in a time of spiritual darkness. Because the darkness of heresy and immorality constantly creeps in, the church must always be seeking to rediscover the light. In this lecture, R.C. Sproul examines the obligation and role of the Christian academy in recovering and proclaiming the light of truth.