The story of Noah’s Ark is primarily told in the biblical book of Genesis.
The main narrative runs through Genesis chapters 6–9. It introduces Noah, describes the world’s violence, gives instructions for building the Ark, recounts the Flood, follows the waters’ recession, and ends with the covenant sign of the rainbow. The account also includes the episode involving Noah’s sons after the Flood.
Genesis is the first book of both the Hebrew Bible and the Christian Old Testament. Its name comes from the Greek word for “origin” or “beginning,” while the Hebrew title is Bereshit, meaning “In the beginning.” The Noah narrative forms one part of Genesis’s early primeval history.
Other biblical books refer to Noah, and later Jewish, Christian, and Islamic traditions expand or reinterpret aspects of the story. Those references do not change the location of the principal Ark narrative: in the Bible, its fullest account is in Genesis.