Contradiction with Genesis 37:22
Reuben suggests throwing Joseph into a pit, contrasting his intention to save him with the act of leaving him in a dangerous situation.
Genesis 37:22: And Reuben said unto them, Shed no blood, [but] cast him into this pit that [is] in the wilderness, and lay no hand upon him; that he might rid him out of their hands, to deliver him to his father again.
Contradiction with Genesis 37:27
Judah suggests selling Joseph to the Ishmaelites, contradicting Reuben's wish to save him and letting him to be taken away instead.
Genesis 37:27: Come, and let us sell him to the Ishmeelites, and let not our hand be upon him; for he [is] our brother [and] our flesh. And his brethren were content. [were...: Heb. hearkened]
Contradiction with Genesis 37:29
Reuben discovers Joseph is not in the pit and is distressed, contradicting his earlier intention to ensure Joseph's safety.
Genesis 37:29: And Reuben returned unto the pit; and, behold, Joseph [was] not in the pit; and he rent his clothes.
Contradiction with Genesis 37:33
Jacob believes a wild beast has devoured Joseph, contrasting with Reuben's attempt to save him and keep him safe.
Genesis 37:33: And he knew it, and said, [It is] my son's coat; an evil beast hath devoured him; Joseph is without doubt rent in pieces.