Hebrews 5:11-6:12 Impossible Repentance?

Hebrews 5:11 through 6:12 is a scary passage for many because they don't understand to whom the author was speaking. He wrote to a Jewish audience in which some were thinking about going back to the Temple sacrifices. Jesus was the final sacrifice and the author wanted his Jewish family to know that no other sacrifice could take away their sins. It was Jesus or nothing.