'Dawn's' in the Bible

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

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

What am I going to do with you, O Ephraim? What am I going to do with you, O Judah? For your faithfulness is as fleeting as the morning mist; it disappears as quickly as dawn's dew!