User blog comment:Touchinos/"Moriah" Discussion/@comment-31767970-20190426104145/@comment-79.115.77.84-20190426142918

Castiel with all that souls wasn t a threat to Death, Death could kill him with 1 touch. And i doubt that that with all that souls he was par on par with Jack full power. God is another league, the only beings that can hurt him are the Darkness , Death ( old Death , i don t know about Billie)

and probably the Shadow. Jack wasn t  a threat to him. he just fake it for the sake of his story.