Answers to Questions by Yair Davidiy (15 August 2017, 23 Av, 5777)
What are the worst sins a Jew can commit according to Judaism?
He will be Killed BUT shall not Transgress!
The Three commandments for which a Jewish person is obligated to die if necessary and not transgress are:
Prohibition of Idolatry.Â
Â Do not worship other gods. Missionaries who try to convert Jews to Christianity may not realize how much HARM they are causing.
Prohibition of bloodshed.Â
Â Do not kill another person unless in self-defence or something along those lines.
Â This means homosexuality, incest, adultery, etc.
To some degree a non-Jews is also obligated by these commandments but not necessarily bound to give their lives for them.
Â On the other hand the application of these commandments to a non-Jew in some cases may be stringent.
For details go to the relevant Hebrew language article and Translate it: