How many people were on Noah’s ark?

Four couples

God counts the passengers before a single plank is cut. The covenant comes first, then the list.

But I will establish my covenant with you. You shall come into the ship, you, your sons, your wife, and your sons’ wives with you.

Genesis repeats the same four couples every time the door opens or closes: going in (7:7, 13), told to come out (8:16) and coming out (8:18). The New Testament keeps the number. First Peter recalls the days when the ark was built, when “few, that is, eight souls, were saved through water” (1 Peter 3:20). Second Peter says God preserved Noah “with seven others” (2 Peter 2:5). The Greek literally calls him Noah the eighth, and the King James Version (1611) kept it: “saved Noah the eighth person.”

Medieval readers noticed the order of the names too. Going in, the men are listed together and the women together: Noah with his sons, then his wife and his sons’ wives (7:7). When God calls them out, each husband is paired with his wife: “you, your wife, your sons, and your sons’ wives” (8:16). Rashi read a quiet rule into it. While the world drowned, husbands and wives kept apart; on dry land, they were together again.

Who the eight were

• Noah, six hundred years old when the water came (7:6).
• His wife, never named in Genesis. Later writers gave her several names (what they called her).
• Shem, Ham and Japheth, born after Noah turned five hundred (5:32). Shem was a hundred two years after the flood (11:10), so about ninety-eight on board. Ham is called the youngest (9:24).
• Three daughters-in-law, as nameless as their mother-in-law.

Who was not on board

No grandchildren. Genesis is careful about the timing.

Now this is the history of the generations of the sons of Noah and of Shem, Ham, and Japheth. Sons were born to them after the flood.

Shem’s son Arpachshad, for one, was born two years after the flood (11:10). Nor were Noah’s brothers and sisters aboard. His father Lamech, Genesis says, “became the father of other sons and daughters” (5:30), and none of them is counted in. Lamech himself had died five years before the rain, and his father died in the flood year (how old Methuselah was).

The Quran tells of one more loss. Its Noah carries his family and the believers, who are few (11:40). One of his sons refuses to board and heads for a mountain, and the waves rise between father and son until the son drowns (11:42–43).

The whole world from eight

After the flood the eight become everyone’s ancestors. “These three were the sons of Noah, and from these the whole earth was populated” (9:19). The next chapter, the Table of Nations, spreads their descendants across the known world, nation by nation and language by language (10:5, 32). Shem’s name would one day give English the word Semitic (where that word comes from). And First Peter turns the small number into a lesson: the water that carried the eight to safety is “a symbol of baptism” (1 Peter 3:21).