Bereshis 1:17-19

Orthodox Jewish Bible

¹⁷ And Elohim set them in the raki’a of the heaven to give light upon the earth,

¹⁸ And to rule over the day and over the night, and to divide the light from the darkness; and Elohim saw that it was tov.

¹⁹ And the erev and the boker were Yom Revi’i (Day Four, the Fourth Day).