Genesis 1 global flood1 In the beginning God created the heavens...

Genesis 1 global flood

1 In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.

as for the Noachian flood I think it was substantial but not global there are implicit and explicit verses in the bible that militates against the position of such a widespread Noachian event.