'Denounced' in the Bible

How can I curse someone God has not cursed?How can I denounce someone the Lord has not denounced?

{Therefore} {at this time} [some] {astrologers} came forward and {they denounced the Jews}.

But we would like to hear from you what your views are [that is, exactly what you believe]; for in regard to this sect (Christianity), we are fully aware that it is denounced everywhere.”

If I eat with thankfulness, why should I be denounced because of what I am thankful for?