Overview of Genesis 7

Says The Lord tells Noah to go into the ark, he and all his family, because He has found him righteous in this generation (7:1). Of every clean animal he is to take שִׁבְעָה שִׁבְעָה, seven seven (the BSB has seven pairs; its footnote, by sevens), and of the unclean two (7:2–3). In yet seven days He will send rain forty days and forty nights (7:4). “And Noah did all that the Lord had commanded him” (7:5, BSB). At six hundred years they enter, and clean and unclean come two by two (7:6–9). On the seventeenth day of the second month the great deep is split open (7:11); Swete has the twenty-seventh. On that very day they enter, and the Lord shuts behind him (7:13–16). The waters prevail and cover all the high mountains under all the heavens; fifteen cubits upward they prevail, and the mountains are covered (7:17–20). All flesh on the dry ground dies; only Noah and those with him are left (7:21–24). See the Hebrew, Greek and textual notes.

Implies Noah is a real person, as the New Testament treats him. That is set out in the note on persons and history.

Uncertain How the sevens stand beside the pairs, which day in 7:11 is original, how the forty and the hundred and fifty days fit, what the fifteen cubits measure, and how far the flood reached, are treated in the notes that follow. No lean is taken.