Contradiction with Hebrews 9:4
This verse describes the location of the golden altar of incense as being inside the Most Holy Place, while Exodus 30:6 places it outside the veil.
Hebrews 9:4: Which had the golden censer, and the ark of the covenant overlaid round about with gold, wherein [was] the golden pot that had manna, and Aaron's rod that budded, and the tables of the covenant;
Contradiction with 1 Kings 6:22
This verse suggests the altar was part of the inner sanctuary, contradicting Exodus 30:6 that places it outside the inner curtain.
1 Kings 6:22: And the whole house he overlaid with gold, until he had finished all the house: also the whole altar that [was] by the oracle he overlaid with gold.
Contradiction with Leviticus 16:12
Describes the high priest taking incense from the altar and bringing it inside the veil, implying a separation contrary to Exodus 30:6 which suggests proximity to the ark.
Leviticus 16:12: And he shall take a censer full of burning coals of fire from off the altar before the LORD, and his hands full of sweet incense beaten small, and bring [it] within the vail: