The Light - 24:35
God is the light of the heavens and the earth. The example of His light is like this: a cavity with a lamp in it. The lamp is in a glass vessel. And that glass vessel is like a pearly planet. Its fuel is from a luxuriant tree that produces olive oil, which is not connected to the west nor to the east. Its oil gives light almost without touching fire. It is light upon light. Allah brings to His light whoever He wills. This is how Allah gives such examples to the people. Allah knows everything.
The verse uses a simile to describe how the light of Allah guides and enlightens people; the Qur'an is the guide/illumination that leads people to peace, tranquility and the right path against the darkness/evil suggestions of Satan:
The Table Spread/5:15
People of the Book, our messenger has come to you, who has revealed to you many parts of the Book which you have concealed, and many of them he has not thrown in your faces. And there has come to you a light from Allah and a clear Book.
The Table Spread/5:16
By it Allah guides those who seek His pleasure to the paths of peace and tranquility, and by His permission He guides them to the straight path, bringing them out of darkness into light.
Prophet Abraham/14:1
A.L.R. is a Book. We have sent it down to you so that you may bring people out of darkness into the light by the permission of their Lord, the Way of the Mighty and Praiseworthy. .
Prophet Abraham/14:2
I mean Allah. He has all that is in the heavens and the earth. Woe to the disbelievers for the severe punishment they deserve.
The Coalition/33:43
He supports you with His angels to bring you out of darkness into the light. He is Most Merciful to those who believe.
Council/42:52
So We revealed to you a spirit from Our Presence, and you did not know what a book was and what faith was. But We have made it a light that guides the servants whom We will to the truth. Surely you are a guide to the right path.
The Iron/57:9
It is He Who has sent down to His servant the clear signs to bring you out of darkness into light. Surely Allah is Compassionate towards you, Most Merciful.
Divorce/65:11
He has sent a messenger. He recites to you the clear signs of Allah to bring those who believe and do righteous deeds out of darkness into light. Whoever believes in Allah and does righteous deeds, He will admit him into Gardens in which rivers flow, where they will abide forever. Allah has given him a goodly sustenance.
The Cow/2:257
Allah is the sovereign and the friend of those who believe; He brings them out of darkness into light. But the friends of those who disbelieve are fierce men; they bring them out of light into darkness. They are the people of the Fire, they will abide therein forever.
The Cattle/6:122
Is he whom We raised from the dead and gave him light to walk among people like him who is in darkness and cannot come out of it? This is how the deeds of the disbelievers are embellished.
The Heights/7:203
"When You do not bring them a sign, they say: "What would have happened if you had asked for a sign". Say: "I follow only what has been revealed to me from my Lord."These are enlightenments from your Lord, a guidance and mercy for a people who believe."
The Heights/7:157
Indeed, they follow (when the time comes) that messenger whom they find written in the Torah and the Gospel with them, the Messenger of Allah, the Messenger of the Ummim (who has not read the Torah and the Gospel), who enjoins upon them good and forbids them from evil, who makes lawful for them good things and forbids for them unclean things, who removes from them the weights and the fetters that weigh them down. Those who believe in him and respect him and help him and follow the light sent down with him are the successful ones.
The Companies/39:22
Whoever Allah opens his bosom to Islam, he is on a light from his Lord. Woe to those whose hearts are hardened against the message of Allah. They are in clear error.