Contradiction with Deuteronomy 17:14-15
This verse allows for appointing a king, contradicting 1 Samuel 8:21 where the request for a king is portrayed negatively.
Deuteronomy 17:14-15: When thou art come unto the land which the LORD thy God giveth thee, and shalt possess it, and shalt dwell therein, and shalt say, I will set a king over me, like as all the nations that [are] about me;
Contradiction with Hosea 13:10-11
This verse expresses God's disapproval of Israel's desire for a king, contradicting God's acquiescence to their request in 1 Samuel 8:21.
Hosea 13:10-11: I will be thy king: where [is any other] that may save thee in all thy cities? and thy judges of whom thou saidst, Give me a king and princes? [I will...: rather, Where is thy king?]
Contradiction with Judges 8:23
Gideon refuses kingship, emphasizing God as ruler, contrary to 1 Samuel 8:21 where a human king is requested and accepted.
Judges 8:23: And Gideon said unto them, I will not rule over you, neither shall my son rule over you: the LORD shall rule over you.
Contradiction with 1 Samuel 12:12-17
Samuel rebukes Israel for demanding a king, contrasting his acceptance of their request in 1 Samuel 8:21.
1 Samuel 12:12-17: And when ye saw that Nahash the king of the children of Ammon came against you, ye said unto me, Nay; but a king shall reign over us: when the LORD your God [was] your king.