Genesis 1:14-19

And God said, “Let there be bright lights to shine in space to bathe the earth with their light. Let them serve as signs to separate the day from night, and signify the days, seasons, and years.” And so it happened. God made two great lights: the brighter light to rule the day and the lesser light to rule the night. He also spread the tapestry of shining stars and set them all in the sky to illuminate the earth, to rule over the day and to rule over the night, and to separate the light from darkness. God loved what he saw, for it was beautiful. Evening gave way to morning—day four.