God is the absolute Sovereign who rules over the darkness and the powers of evil. While light is not itself divine, it is often used metaphorically for life. Light symbolizes the holy God. Light signifies God's presence and favor in contrast to God's judgment. Jesus declares that he is "the light of the world". Jesus is the incarnate Word of God, who has come as the light that enlightens all people, so that those believing in him will no longer be in darkness. "For God, who said, 'Let light shine out of darkness, ' make his light shine in our hearts to give us the light of the knowledge of the glory of God in the face of Christ" [2 Cor. 4:6]. Those responding to the light are ushered into the sphere of life in which darkness is dispelled. Salvation brings light to those in darkness. Jesus Christ is life-giving light, in whom is life, and those who follow him "will never walk in darkness, but will have the light of life" [John 8:12]. Believers are "sons of light". Light possesses powers essential to true life. Hence "to be in the light" means simply "to live"-both life eternal and life temporal. The one who has come into the light of Jesus Christ is brought into the ethical life characterized by light. The godly person enjoys the light of life in the present age [1 John 2:10]. The revealed will of God provides light to the heart, soul, and mind of the believer. The truly Christian life is a life of light.