Contradiction with Exodus 20:4
Exodus 26:36 calls for cherubim on the veil, while Exodus 20:4 warns against making any graven image.
Exodus 20:4: Thou shalt not make unto thee any graven image, or any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the water under the earth:
Contradiction with Leviticus 26:1
Exodus 26:36 involves creating designs for the tabernacle, counter to Leviticus 26:1's prohibition on setting up carved stones.
Leviticus 26:1: Ye shall make you no idols nor graven image, neither rear you up a standing image, neither shall ye set up [any] image of stone in your land, to bow down unto it: for I [am] the LORD your God. [standing...: or, pillar] [image of...: or, figured stone: Heb. a stone of picture]
Contradiction with Deuteronomy 5:8
Whereas Exodus 26:36 involves artistry for the tabernacle, Deuteronomy 5:8 prohibits idols or images.
Deuteronomy 5:8: Thou shalt not make thee [any] graven image, [or] any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the waters beneath the earth:
Contradiction with 1 John 5:21
Exodus 26:36 prescribes artistic work for the sanctuary, yet 1 John 5:21 advises believers to avoid idols.
1 John 5:21: Little children, keep yourselves from idols. Amen.