In Paphos there lived a sorcerer named Elymas, who posed as a prophet. He belonged to the governor’s retinue. Seized with jealousy because the governor wanted to hear the word of the Lord from Paul and Barnabas, Elymas tried to turn him aside from faith. Having seen the light, Elymas preferred darkness and preferred also that others remain in darkness if their turning to the light should turn them away from him. He thus willfully falsified the truth and was struck blind.
The result of deliberate deception is blindness. The man who, to preserve his own position, deceives himself or another, is a swindler (this is what Paul called Elymas), “rascal, son of the devil, enemy of all goodness” (Acts 13:10 NEB).
God is light and in Him is not any darkness at all.
If we guard some comer of darkness in ourselves, we will soon be drawing someone else into darkness, shutting them out from the light in the face of Jesus Christ.
“Lighten our darkness, we beseech thee, O Lord; and by thy great mercy defend us from all perils and dangers of this night; for the love of thy only Son, our Savior, Jesus Christ. Amen” (Book of Common Prayer).