Genesis 8:5-7

New Revised Standard Version Catholic Edition

⁵ The waters continued to abate until the tenth month; in the tenth month, on the first day of the month, the tops of the mountains appeared.

⁶ At the end of forty days Noah opened the window of the ark that he had made ⁷ and sent out the raven; and it went to and fro until the waters were dried up from the earth.