'Sins' in the Bible

Jesus said therefore again to them, "I am going away, and you will seek me, and you will die in your sins. Where I go, you can't come."

I said therefore to you that you will die in your sins; for unless you believe that I am he, you will die in your sins."

They answered him, "You were altogether born in sins, and do you teach us?" They threw him out.

Whoever's sins you forgive, they are forgiven them. Whoever's sins you retain, they have been retained."