Those who believe in “objective” and unchanging morality: Do you…

Those who believe in “objective” and unchanging morality: Do you believe it is objectively wrong to stab children with swords, kill gay people for having sex, and permanently enslave human beings?

If so, why did the Bible god command and/or authorize all of these actions? Each action was deemed morally acceptable by god. Otherwise, he would not have commanded and/or approved of these behaviors.

Let me me know if you need chapter and verse.

Thanks