Part 1: Light Speed

I John 1:5:

This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.

 

Part 2: Literal Light

Jeremiah 25:31:

A noise shall come even to the ends of the earth; for the LORD hath a controversy with the nations, he will plead with all flesh; he will give them that are wicked to the sword, saith the LORD.