Genesis 1:16-18 NIV

16 God made two great lights--the greater light1 to govern2 the day and the lesser light to govern3 the night.4 He also made the stars.5
17 God set them in the expanse of the sky to give light on the earth,
18 to govern the day and the night,6 and to separate light from darkness. And God saw that it was good.7

References for Genesis 1:18