The date and the days of the flood (Genesis 7:11–24)

Says “Now Noah was 600 years old when the floodwaters came upon the earth” (7:6, BSB). After the seven days of 7:4, the waters come (7:10). “In the six hundredth year of Noah’s life, on the seventeenth day of the second month, all the fountains of the great deep burst forth, and the floodgates of the heavens were opened” (7:11, BSB). Swete has τοῦ δευτέρου μηνός, ἑβδόμῃ καὶ εἰκάδι τοῦ μηνός, the twenty-seventh of the month. The Samaritan text has the seventeenth. The rain is forty days and forty nights (7:12); at 7:17 the Masoretic Text has forty days only, and Swete adds the nights. The waters prevail 150 days (7:24). In the Masoretic Text the ark later rests on the seventeenth of the seventh month (8:4), and the earth is dry on the twenty-seventh of the second (8:14). See the textual and Greek notes.

Implies The wording of the deep and of the windows of the heavens is shared with Genesis 1:2 and with 8:2.

Uncertain Which day in 7:11 is original, and how the figures fit, are open. No lean is taken. (1) The seventeenth: ground, the Hebrew text, with the same day number at 8:4; objection, that number could have been carried back. (2) The twenty-seventh: ground, it is the day of 8:14; objection, that number could have been carried back. Whether the forty days fall within the hundred and fifty, and on what reckoning of months, the words do not settle. See the historical note.