 Dean then asks him what he needed to tell him, but Castiel coldly replies his loyalty is to Heaven, not to mankind or to him.In "When the Levee Breaks", Castiel has Dean take the oath of allegiance to God and His angels, to which Dean agrees under the impression it will keep Sam safe.Later in the episode, Castiel releases Sam, who is on detox from Ruby's demon blood, from Bobby's Panic Room.