Read Part 3.
Light is essential for life, and light is a central subject in the Bible. It literally bookends the storyline, from its creation (Gen. 1:3-4) to the point where it becomes obsolete—aside from the light that emanates from the Son of God Himself (Isa. 60:19-20; Rev. 21:23).
In between, He is “the light of the world” (John 8:12; 9:5; see 12:46). As such, He is “the light of men” (John 1:4), and “the true Light which gives light to every man coming…