I am not sure what to write for the Bnai Noach government because of the 7 Laws of Noah, I am not sure which one would prohibit or allow marijuana use. The only one I can think of is that they are supposed to set up courts of government. In these courts, if the Noahide government decides to prohibit the use of marijuana or drugs, then they all have to follow i
2) According to Torah law for Jews in Israel
a) Marijuana- permitted for medicinal purposes. And permitted for recreational use like alcohol and tobacco is. In fact, most cases of people getting lung
cancer from marijuana is due to people rolling joints that are mixes of tobacco and MJ. But smoking it out of a vaporizer is the healthiest way to smoke it.
b) Hard drugs- completely forbidden on two basis. One, hard drugs harm the body. Looking at meth users throughout the years, it is obvious. The
user can harm not just his body but may be instantly killed if under the influence of hard drugs crashes or jumps out of a building or drowns.
And two: the user of hard drugs can harm others. Either by being a parent on meth or cocaine that starts beating their kids. A pregnant mother who harms
her fetus by using drugs, a user on ecstasy who gets behind a wheel and crashes and kills a family in another car.
The mitzvot that in my opinion would somehow concern allowing/forbidding marijuana or drugs are the following. (This is just me)
1) To imitate His good and upright ways. Could we imagine Hashem doing drugs? No.
2) To learn Torah and to teach it . If people become too interested in marijuana or drugs over studying the Torah, then it must be forbidden for that person
3) To love all human beings who are of the covenant. By using hard drugs, we would put other people's life in danger, not just our own.
4) Not to stand by idly when a human life is in danger. A meth user is basically killing him or herself, we would not be able to stand idly by.
5) Not to cherish hatred in one's heart. As a society, we may start to hate the drug users.
6) To honor father and mother. Let's say the parents do not want us to do marijuana
7) Not to smite or curse a father or mother. A drug user who is high gets upset at his or her parents, then in anger strikes or curses them.
8) Not to make use of an idol or its accessory objects, offerings, or libations . Like smoking peyote on the peace pipe in a native ceremony
Etc..etc. These may not be perfect examples but it is a suggestion of the things a court might think about when ruling for and against prohibiting marijuana and drugs.
There are those who say that marijuana is akin to idolatry. I have a friend who has tried to convince me that it is evil based on the fact that marijuana users become addicted and they replace Hashem with their new addiction.
Personally, I have never done hard drugs ever and I am against them because they damage the body and are a risk to society. But marijuana is not that bad.