Contradiction with James 1:13
This verse says that God does not tempt, but in Numbers 17:7, Aaron's rod is used for a test by God.
James 1:13: Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man: [evil: or, evils]
Contradiction with Exodus 20:13
This verse commands, "Thou shalt not kill," yet Numbers 17:7 involves God's decision that results in choosing a leader, which indirectly relates to the fate of dissenters who opposed God's chosen leader in earlier chapters.
Exodus 20:13: Thou shalt not kill.
Contradiction with Isaiah 55:8-9
These verses speak to God's ways being higher, yet Numbers 17:7 suggests a human-like resolution to disputes by showing signs through physical objects.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.
Contradiction with Matthew 4:7
This verse cautions against testing God, while Numbers 17:7 involves a test set by God to demonstrate His chosen one.
Matthew 4:7: Jesus said unto him, It is written again, Thou shalt not tempt the Lord thy God. [tempt: or, try, or, put to trial, or, proof]