Why Are There 39 Types of Work Forbidden on Shabbat

People familiar with the Sabbath laws know that the Torah does not list the activities prohibited on the Sabbath. However, rabbis in the Babylonian Talmud, Shabbat 49a, state that the Torah hints at the activities that are banned.
These hints are based on two rabbinical teachings that are applied by the rabbis at times: (1) When facts or incidents are placed near one another in the Bible, one can derive a lesson from the juxtaposition. (2) A halakhah can be learned from such things as counting the number of times an item appears in the Torah.
Thus the rabbis stated:

The Impact of Tearful Prayers

Question: The Talmud contends that "from the day that the Beit HaMikdash was destroyed, the gates of prayer were locked...but the gates of tears were never sealed". (Bava Metzia 59a-Berakhot 32b) The implication is that tears have an impact upon prayers. Or better yet, tearful prayers are always in order. How are tearful prayers more significant or potent than simple prayers without tears?

The Middle of the Road Approach

There is a type of "middle of the road" approach in religious observance that is passed down from one generation to the next, an approach that does not always coincide with what is practiced in the world of the yeshiva. It is quite common for a son to return from yeshiva and begin to find fault with the practices of the household: he doesn't approve of the size of the Kiddush cup; he wants to wear tsitsith so that they hang outside his shirt; he objects to preparing tea on Shabbat (by means of a "third vessel"), but insists on using tea concentrate, and so on.

Rabbi, Can We Talk? - Pastoral Counseling at YCT Rabbinical School

“Rabbi, this is hard to talk about but…

…. our son has a non-Jewish

feeling really shaky. My ex-husband abused me for years and now our daughter is
getting married. I don’t know if I can make it through the wedding.”

that pervert leaves the community or I do. And I’m taking my family, my money
and my friends with me.”