Pastor Byers explains that believers cannot progress to Day Two until all of God’s purposes for Day One are fulfilled. Day One includes not only receiving light but also allowing God to divide light from darkness. This separation involves friendships, works, and attitudes toward fellow believers. Christians must separate from worldly friendships that hinder spiritual growth and from works of darkness that grieve the Spirit. He warns against legalism, illustrated by the story of “Sister Most Holy,” whose harshness destroys a new believer’s joy. Legalism kills spiritual life and replaces grace with condemnation. The third separation is learning unfeigned love for brethren, as seen in the story of Abraham and Lot. Only when these separations occur can a believer move on to Day Two.