The term Hexaemeron, literally "six days," is used in one of two senses. In one sense, it refers to the Genesis creation narrative spanning Genesis 1:1–2:3: corresponding to the creation of the light ; the sky ; the earth, seas, and vegetation ; the sun and moon ; animals of the air and sea ; and land animals and humans. God then rests from his work on the seventh day of creation, the Sabbath.

The Genesis creation narrative is the creation myth of both Judaism and Christianity. The narrative is made up of two stories, roughly equivalent to the first two chapters of the Book of Genesis. In the first, Elohim creates the heavens and the Earth in six days, then rests on, blesses, and sanctifies the seventh. In the second story God creates Adam, the first man, from dust and places him in the Garden of Eden. There he is given dominion over the animals. Eve, the first woman, is created from Adam's rib as his companion.