Excerpt from an article in the Israeli website: Haaretz
The oldest creation myth in the Bible isn’t in the Book of Genesis at all. It is alluded to in the Book of Isaiah, in the Book of Job and in Psalms.
The clearest and fullest biblical account of this ancient myth appears in Psalm 74: “For God… Thou didst divide the sea by thy strength: thou brakest the heads of the dragons in the waters. Thou brakest the heads of leviathan in pieces, and gavest him to be meat to the people inhabiting the wilderness. Thou didst cleave the fountain and the flood: thou driedst up mighty rivers. The day is thine, the night also is thine: thou hast prepared the light and the sun. Thou hast set all the borders of the earth: thou hast made summer and winter” (74:12-17).
An archaeological discovery made in the 20th century shed light on this strange account of creation, revealing it for what it is: an abridged version of the Canaanite creation myth.