Contradiction with Exodus 20:4
This verse forbids the making of graven images or likenesses, which can be seen as contradictory to the ornamental work described in Exodus 39:25.
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
This verse prohibits making idols or images, which could be seen as contradictory to the creation of decorative bells in Exodus 39:25.
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]