חָ֭כְמוֹת בָּנְתָ֣ה בֵיתָ֑הּ חָצְבָ֖ה עַמּוּדֶ֣יהָ שִׁבְעָֽה׃
Wisdom hath builded her house, she hath hewn out her seven pillars;
Rashi on Proverbs
Wisdom has built her house With wisdom has the Holy One, blessed be He, built the world.
Rashi on Proverbs
she has hewn her seven pillars The seven days of Creation. Another explanation: This refers to the seven books of the Torah, since (Num. 10:35f.) “And it came about when the ark traveled...” is an individual book, as is stated in tractate Shabbath (116a).