Contradiction with Deuteronomy 14:22
Deuteronomy 14:22 outlines tithing as a way to consume the yield of seed, which can be seen as a contrast to Numbers 18:15 where the firstborn of the womb is given to the priests.
Deuteronomy 14:22: Thou shalt truly tithe all the increase of thy seed, that the field bringeth forth year by year.
Contradiction with Ezekiel 32:30
This verse discusses the destiny of uncircumcised nations as a prophecy, which diverges from the ceremonial and sacrificial laws described in Numbers 18:15 relevant to Israel.
Ezekiel 32:30: There [be] the princes of the north, all of them, and all the Zidonians, which are gone down with the slain; with their terror they are ashamed of their might; and they lie uncircumcised with [them that be] slain by the sword, and bear their shame with them that go down to the pit.
Contradiction with Amos 5:21-22
Amos criticizes the feasts and offerings, which can be seen as a contradiction to the offerings deemed holy and necessary in Numbers 18:15.
Amos 5:21-22: I hate, I despise your feast days, and I will not smell in your solemn assemblies. [in...: or, your holy days]
Contradiction with Hebrews 10:4
This verse states that it is impossible for the blood of bulls and goats to take away sins, which contradicts the implication in Numbers 18:15 that sacrificial animals have purifying or redeeming power.
Hebrews 10:4: For [it is] not possible that the blood of bulls and of goats should take away sins.
Paradox #1
The doctrinal conflict could arise from the understanding that certain offerings or firstborns, which were seen as belonging to God, had to be redeemed by payment instead of being directly given. This might seem inconsistent with the idea that everything firstborn wholly belongs to God, without exception.
Paradox #2
Numbers 18:15 discusses the redemption of firstborn animals and people. A potential contradiction might relate to differing practices or rules about firstborns in other parts of the Bible, where specific instructions may vary. For example, differing redeeming procedures or different rules about what to do with firstborns could be seen as inconsistent when compared across various books.
Paradox #3
This verse could be seen as morally conflicting because it involves instructions about offering firstborn children and animals to God. Some might find it challenging to reconcile the idea of dedicating firstborns with modern views on the sanctity and autonomy of human life. This can create tension between religious practices and contemporary ethical beliefs about individual rights and freedoms.