Thanks for your reply, appreciate it. It is an offence of wrong conduct not expulsion. By committing such offence, do you know what is the consequence laid down by Buddha?
Take some teacher who has this doctrine and view: ‘Everyone who kills a living creature, steals, commits sexual misconduct, or lies goes to a place of loss, to hell.’ And there’s a disciple who is devoted to that teacher. They think: ‘My teacher has this doctrine and view: ‘Everyone who kills a living creature, steals, commits sexual misconduct, or lies goes to a place of loss, to hell.’ But I’ve killed living creatures … stolen … committed sexual misconduct … or lied. They get the view: ‘I too am going to a place of loss, to hell.’ Unless they give up that speech and thought, and let go of that view, they will be cast down to hell
But consider when a Realized One arises in the world, perfected, a fully awakened Buddha, accomplished in knowledge and conduct, holy, knower of the world, supreme guide for those who wish to train, teacher of gods and humans, awakened, blessed. In many ways he criticizes and denounces killing living creatures, saying: ‘Stop killing living creatures!’ He criticizes and denounces stealing … sexual misconduct … lying, saying: ‘Stop lying!’ And there’s a disciple who is devoted to that teacher. Then they reflect: ‘In many ways the Buddha criticizes and denounces killing living creatures, saying: “Stop killing living creatures!” But I have killed living creatures to a certain extent. That’s not right, it’s not good, and I feel remorseful because of it. But I can’t undo what I have done.’ Reflecting like this, they give up killing living creatures, and in future they don’t kill living creatures. That’s how to give up this bad deed and get past it. (SuttaCentral)
It seems to me that the mind is the creator. It is useful to have morality to protect the world and humanity, Buddha said an innate sense of shame over moral transgression; ottappa is moral dread, fear of the results of wrongdoing protecting the world. I think I read about Hiri and Ottappa before but not sure which Sutta, I found this essay by Bhikkhu Bodhi Hiri and Ottappa.
Other than that, I think Buddhist morality is just social construct. Mind is the forerunner, what do you think? @Gabriel_L