Contradiction with Leviticus 27:30
This verse states that all the tithe of the land is the LORD's, which might contradict the idea of tithes being stored or used differently as in 2 Chronicles 31:6.
Leviticus 27:30: And all the tithe of the land, [whether] of the seed of the land, [or] of the fruit of the tree, [is] the LORD'S: [it is] holy unto the LORD.
Contradiction with Deuteronomy 14:22-23
These verses describe consuming tithes in the place which God shall choose, potentially conflicting with the storage practice described in 2 Chronicles 31:6.
Deuteronomy 14:22-23: Thou shalt truly tithe all the increase of thy seed, that the field bringeth forth year by year.
Contradiction with Matthew 23:23
This verse addresses the importance of practicing justice, mercy, and faithfulness over merely tithing, possibly contradicting the focus on tithing alone seen in 2 Chronicles 31:6.
Matthew 23:23: Woe unto you, scribes and Pharisees, hypocrites! for ye pay tithe of mint and anise and cummin, and have omitted the weightier [matters] of the law, judgment, mercy, and faith: these ought ye to have done, and not to leave the other undone. [anise: Gr. dill]