Hi how are u I think I can answer your question on the topic is smoking weed a sin?? I read the bible n I thank The Lord did he did give me spiritual knowledge n understanding. Smoking weed is a sin it say it in revelation 9 : 21 they did not repent of their murders sorceries. Sorceries is a Greek word which is pharmakeia. Meanin by their enchantment with drugs or getting high on drugs