According to 1 Peter, eight people were saved from the flood inside Noah’s Ark.
1 Peter 3:20 refers to the people who were brought safely through water in the days of Noah and says that eight souls were saved. This count matches the household described in Genesis: Noah, his wife, his three sons, and the wives of his three sons.
Genesis 7:13 names Noah, Shem, Ham, Japheth, Noah’s wife, and the three wives of his sons as entering the Ark. Adding them gives eight people. The text does not name the four women individually.
The number is distinct from the number of animals aboard the Ark and from the number of Noah’s sons. It is also a New Testament statement that summarizes the Genesis account, making 1 Peter the most specific source for the phrase “eight souls” in connection with the flood.