Contradiction with Deuteronomy 18:3
Deuteronomy 18:3 states that the priest's share includes the shoulder, cheeks, and stomach, whereas Numbers 18:12 mentions offerings of oil, wine, and grain as the priest's dues.
Deuteronomy 18:3: And this shall be the priest's due from the people, from them that offer a sacrifice, whether [it be] ox or sheep; and they shall give unto the priest the shoulder, and the two cheeks, and the maw.
Contradiction with 1 Samuel 2:13-16
In 1 Samuel 2:13-16, the priests take meat by force, contrary to Numbers 18:12, which specifies particular items the priests are entitled to without mention of such force.
1 Samuel 2:13-16: And the priests' custom with the people [was, that], when any man offered sacrifice, the priest's servant came, while the flesh was in seething, with a fleshhook of three teeth in his hand;
Contradiction with Hebrews 7:12
Hebrews 7:12 discusses the change in priesthood laws, implying a shift from the rules set out in Numbers 18:12, which is specific to Levitical priesthood practices.
Hebrews 7:12: For the priesthood being changed, there is made of necessity a change also of the law.
Contradiction with Ezekiel 44:30
Ezekiel 44:30 mentions different offerings such as the first of dough, contradicting Numbers 18:12, which lists firstfruits but focuses on oil, wine, and grain offerings for the priests.
Ezekiel 44:30: And the first of all the firstfruits of all [things], and every oblation of all, of every [sort] of your oblations, shall be the priest's: ye shall also give unto the priest the first of your dough, that he may cause the blessing to rest in thine house. [And the first: or, And the chief]
Paradox #1
The potential contradiction or conflict could arise from the idea that certain people or groups are given special privileges or rights to resources, which might conflict with modern ideas of equality and fairness. This can raise questions about why some are favored over others.