Genesis 1:1-5

At first Elohim created the sky and the earth. And the earth was an unformed wasteland; and there was darkness upon the abyss. And Elohim's breath moved against the waters. (Traditionally this has been translated as the Spirit of God but I think it is poetically describing God causing the waves. The word for spirit has a variety of meanings according to context.) Elohim said: Light shall exist. And light did. Then Elohim perceived that the light was beneficial; and He divided the light from the darkness. Elohim called the light part Day, and the dark part He called Night. And the nighttime and the daytime were one day.