Contradiction with Leviticus 1:3
The rituals in Leviticus discuss burnt offerings of male animals, whereas Numbers 19:1 introduces the red heifer, a female, for purification.
Leviticus 1:3: If his offering [be] a burnt sacrifice of the herd, let him offer a male without blemish: he shall offer it of his own voluntary will at the door of the tabernacle of the congregation before the LORD.
Contradiction with Hebrews 9:13-14
This passage argues the insufficiency of the blood of animals for true purification, contrasting with Numbers 19:1's establishment of sacrificial cleansing.
Hebrews 9:13-14: For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh:
Contradiction with Jeremiah 7:22
Indicates God did not command burnt offerings and sacrifices, seemingly contradicting God’s command in Numbers 19:1 for a specific sacrifice.
Jeremiah 7:22: For I spake not unto your fathers, nor commanded them in the day that I brought them out of the land of Egypt, concerning burnt offerings or sacrifices: [concerning: Heb. concerning the matter of]
Contradiction with Isaiah 1:11
God expresses disinterest in sacrifices and burnt offerings, conflicting with the instructions to carry out sacrificial rituals in Numbers 19:1.
Isaiah 1:11: To what purpose [is] the multitude of your sacrifices unto me? saith the LORD: I am full of the burnt offerings of rams, and the fat of fed beasts; and I delight not in the blood of bullocks, or of lambs, or of he goats. [he goats: Heb. great he goats]