Contradiction with Exodus 21:12
This verse states that anyone who smites a man to death shall be surely put to death, in contrast to Joshua 20:2, which provides refuge for those who commit manslaughter.
Exodus 21:12: He that smiteth a man, so that he die, shall be surely put to death.
Contradiction with Numbers 35:16
This verse explains that if someone kills another with an iron weapon, they are a murderer and should be put to death, whereas Joshua 20:2 outlines cities of refuge for those who kill unintentionally.
Numbers 35:16: And if he smite him with an instrument of iron, so that he die, he [is] a murderer: the murderer shall surely be put to death.
Contradiction with Deuteronomy 19:11-12
These verses state that if a person hates his neighbor and lies in wait to attack him, he shall be delivered to the avenger of blood, contrasting with Joshua 20:2 where cities are provided for protection, although these cities are intended for unintentional killers.
Deuteronomy 19:11-12: But if any man hate his neighbour, and lie in wait for him, and rise up against him, and smite him mortally that he die, and fleeth into one of these cities: [mortally: Heb. in life]
Contradiction with Leviticus 24:17
This verse declares that whoever kills any man shall surely be put to death, in contradiction to the provision of a place of refuge in Joshua 20:2 for those who cause accidental death.
Leviticus 24:17: And he that killeth any man shall surely be put to death. [killeth...: Heb. smiteth the life of a man]
Paradox #1
The potential contradiction could be related to the concept of providing refuge for those who have committed accidental harm, which might be seen as conflicting with the idea of direct accountability and justice for one's actions. Some might question if offering sanctuary could lead to less responsibility for causing harm, even if unintentional.