'Accursed' in the Bible

But this crowd, which does not know the law, are accursed.

But if even we or an angel out of heaven announce as glad tidings to you anything besides what we have announced as glad tidings to you, let him be accursed.

As we have said before, now also again I say, If any one announce to you as glad tidings anything besides what ye have received, let him be accursed.