186,282 miles per second: Speed of light in a vacuum

PHF: Pretty Honkin Fast

“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always gotten there first, 
and is waiting for it.” – Terry Pratchett, Reaper Man

The way of the wicked is like deep darkness; they do not know over what they stumble.

Proverbs 4:19 English Standard Version (ESV)

The people who walked in darkness have seen a great light; those who dwelt in a land of deep darkness, on them has light shined.

Isaiah 9:2 (ESV)

In the beginning, God created the heavens and the earth. The earth was without form and void, and darkness was over the face of the deep. And the Spirit of God was hovering over the face of the waters.

Genesis 1:1-2 (ESV)

And God said, “Let there be light,” and there was light. And God saw that the light 
was good. And God separated the light from the darkness. God called the light Day, 
and the darkness he called Night. And there was evening and there was morning, 
the first day.

Genesis 1:3-5 (ESV)

In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things came into being through him, and without him not one thing came into being. 
What has come into being in him was life, and the life was the light of all people. 
The light shines in the darkness, and the darkness did not overcome it.

John 1:1-5 New Revised Standard Version (NRSV)

The Word became flesh and blood, 
and moved into the neighborhood. 
We saw the glory with our own eyes, the one-of-a-kind glory, like Father, like Son, Generous inside and out, true from 
start to finish.

John 1:14 The Message (MSG)

What came into existence [that night] was Life, and the Life was Light to live by. 
The Life-Light blazed out of the darkness; the darkness couldn’t put it out.

John 1:4-5 (MSG)

Jesus stood up and said to her, “Woman, where are they? Has no one 
condemned you?” She said, “No one, Lord.” And Jesus said, “Neither do I condemn you; go, and from now on sin no more.”  
Again Jesus spoke to them, saying, “I am the light of the world. Whoever follows me will not walk in darkness, but will have 
the light of life.”

John 8:10-12 (ESV)