Who knows one hundred fifty-seven?
Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:
Upvote all interesting answers.
Accept the best answer.
Go on to the next number.
Yitzchak was 157 when Yaakov began his journey home.
123 when Yaakov left (sourced previously in MiYodeya)
14 years that Yaakov was in Yeshivas S&E
20 years Yaakov was by Lavan