וְזֶ֕ה אֲשֶׁ֥ר תַּֽעֲשֶׂ֖ה אֹתָ֑הּ שְׁלֹ֧שׁ מֵא֣וֹת אַמָּ֗ה אֹ֚רֶךְ הַתֵּבָ֔ה חֲמִשִּׁ֤ים אַמָּה֙ רָחְבָּ֔הּ וּשְׁלֹשִׁ֥ים אַמָּ֖ה קוֹמָתָֽהּ׃
And this is how thou shalt make it: the length of the ark three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
Read Kabbalistic (mystical) interpretations of Genesis 6:15: Zohar and classical Jewish mystical sources, free online.