Shelomo HaMelekh (King Solomon) famously [wrote][1] in his Mishle'i 24:16 (Proverbs):

> כִּי שֶׁבַע יִפּוֹל צַדִּיק וָקָם וּרְשָׁעִים יִכָּשְׁלוּ בְרָעָה

> For a righteous man can fall seven times and rise, but the wicked shall stumble upon evil.

I've looked through [Miqra'ot Gedolot][2], [Perush HaGR"A][3], [Perush Rabbe'inu Yonah][4] and [Perush HaMaLBI"M][5] and have not seen anyone ask/answer: why ***seven*** and not another number?