Allaah is the close friend of those who believe, and their support, help, and guide. He brings them forth from darkness -- the darkness of shirk, the darkness of sin and of innovation -- to the light of Tawheed, truth and faith, i.e., by means of His Messengers, and by means of His Books that He revealed. But the disbelievers of Quraysh and the disbelievers among the children of Israel and others, their supporters and helpers are the Taghoot or false deities and false leaders. The Taghoot are the devils among mankind and the jinn. The devils among mankind and the jinn are the helpers and supporters of the disbelievers; they bring them forth from the light of Tawheed to the darkness of shirk, ignorance, sin and innovation. So what is meant by light in this verse is: Tawheed, faith and guidance, and darkness means shirk, sin and innovation. We ask Allaah to keep us safe and sound. End quote.