"God is light." (1John 1:5)

Genesis 1:3 has: "And G-d said, Let there be light, and there was light[0]." This says on the literal level that light is a created thing distinct from G-d, and thus finite (though created very close to the creation of the universe itself, on day 1).

To be clear, light is a very common metaphor for G-dliness in Judaism and the quote from John resonates as a perfectly fine metaphor, rather than a literal assertion of equivalence.

[0] "וַיֹּ֥אמֶר אֱלֹהִ֖ים יְהִי־א֑וֹר וַֽיְהִי־אֽוֹר"

Do you have something constructive to add related to the content of the article or are we just quoting random bible verses on HN for no reason?

It wasn't exactly random. The topic of the article is that light is eternal, and the commenter shared a quote from over a thousand years ago stating the same thing. So, the idea of light having an infinite lifetime is apparently not new... even if the mechanics of light are better understood these days.

This is in line for me with the moment of "creation." For most of the history of science as a thing, the scientific view held that the universe was infinitely old cosmos without a beginning or end. The greek model. It was only in 1900s that big bang was theorized (by a catholic priest) that science now views that there was a moment before which the universe didn't exist and after which it did.

The fact that someone reading Genesis would have had a more accurate conception of the origin of the universe, prior to big bang becoming popularized very recently in the grand scheme of things is noteworthy.

Broken clocks...

"The light shines in the darkness, and the darkness can never extinguish it.

God sent a man, John the Baptist, to tell about the light so that everyone might believe because of his testimony. John himself was not the light; he was simply a witness to tell about the light. The one who is the true light, who gives light to everyone, was coming into the world.

He came into the very world he created, but the world didn’t recognize him. He came to his own people, and even they rejected him. But to all who believed him and accepted him, he gave the right to become children of God."(John 1:5-12)

cool story, bro.