'Curse' in the Bible

But this mob that does not know the Law they're under a curse!"

Then He said again to them, “I am going away, and you will look for Me, and you will die [unforgiven and condemned] in your sin. Where I am going, you cannot come.”

That is why I told you that you will die [unforgiven and condemned] in your sins; for if you do not believe that I am the One [I claim to be], you will die in your sins.”