Contradiction with Proverbs 26:10
Proverbs 26:10 suggests that God rewards fools and transgressors, seemingly without discretion, which contrasts with Proverbs 2:8's emphasis on God preserving and protecting those who are righteous and follow His paths.
Proverbs 26:10: The great [God] that formed all [things] both rewardeth the fool, and rewardeth transgressors. [The great...: or, A great man grieveth all, and he hireth the fool, he hireth also transgressors]
Contradiction with Ecclesiastes 9:2
This verse implies that the same fate (death) comes to both the righteous and the wicked, contradicting Proverbs 2:8's notion of God preserving the way of the righteous.
Ecclesiastes 9:2: All [things come] alike to all: [there is] one event to the righteous, and to the wicked; to the good and to the clean, and to the unclean; to him that sacrificeth, and to him that sacrificeth not: as [is] the good, so [is] the sinner; [and] he that sweareth, as [he] that feareth an oath.
Contradiction with Job 21:7
Job 21:7 observes that the wicked can live, grow old, and become mighty in power, which contradicts the thought in Proverbs 2:8 where God preserves the way of the righteous.
Job 21:7: Wherefore do the wicked live, become old, yea, are mighty in power?
Contradiction with Psalm 73:3-12
These verses discuss how the wicked prosper and are not in trouble like others, contrasting with Proverbs 2:8, where the focus is on the protection and prosperity of the righteous.
Psalm 73:3-12: For I was envious at the foolish, [when] I saw the prosperity of the wicked.