Psalms 69:18American Standard Version

Genesis 1:5

And God called the light Day, and the darkness he called Night. And there was evening and there was morning, one day.

Genesis 1:14

And God said, Let there be lights in the firmament of heaven to divide the day from the night; and let them be for signs, and for seasons, and for days and years:

Genesis 1:16

And God made the two great lights; the greater light to rule the day, and the lesser light to rule the night: [he made] the stars also.

Genesis 1:18

and to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.

Genesis 2:3

And God blessed the seventh day, and hallowed it; because that in it he rested from all his work which God had created and made.