Parallel
Genesis 8:5
Rahlfs Septuagint (1935) · Berean Standard Bible
τὸ δὲ ὕδωρ πορευόμενον ἠλαττονοῦτο ἕως τοῦ δεκάτου μηνός ἐν δὲ τῷ ἑνδεκάτῳ μηνί τῇ πρώτῃ τοῦ μηνός ὤφθησαν αἱ κεφαλαὶ τῶν ὀρέων
And the waters continued to recede until the tenth month, and on the first day of the tenth month the tops of the mountains became visible.