וַתָּ֤נַח הַתֵּבָה֙ בַּחֹ֣דֶשׁ הַשְּׁבִיעִ֔י בְּשִׁבְעָה־עָשָׂ֥ר י֖וֹם לַחֹ֑דֶשׁ עַ֖ל הָרֵ֥י אֲרָרָֽט׃
And the ark rested in the seventh month, on the seventeenth day of the month, upon the mountains of Ararat.
Read kabbalistic (mystical) interpretation of Genesis 8:4: and classical mystical sources.