'Light' in the Bible

Now please pay attention closely! My whole family is attacking your humble servant! They're saying, "Turn over the one who attacked his brother and we'll put him to death in retribution for his brother, whose life he took. That way, we'll kill the heir also!' They're going to extinguish the only light left in my family, leaving my late husband neither an ongoing name nor a survivor on the face of the earth!"

So David got up and all of his entourage crossed the Jordan River. Everyone had crossed the Jordan River by dawn's first light.

From the shining light that was his presence coals of fire blazed into flame!

He is like dawn's first light, like bright sun blazing on a cloudless morning, glistening on grassland that flourishes after a rain shower.