Contradiction with Job 21:7
This verse notes how the wicked live, become old, and even grow mighty in power, suggesting a contradiction to the idea of divine care over the righteous lifespan as implied in Psalm 37:18.
Job 21:7: Wherefore do the wicked live, become old, yea, are mighty in power?
Contradiction with Ecclesiastes 8:14
This verse observes that sometimes the righteous get what the wicked deserve and vice versa, challenging the certainty of a righteous legacy suggested in Psalm 37:18.
Ecclesiastes 8:14: There is a vanity which is done upon the earth; that there be just [men], unto whom it happeneth according to the work of the wicked; again, there be wicked [men], to whom it happeneth according to the work of the righteous: I said that this also [is] vanity.
Contradiction with Jeremiah 12:1
Jeremiah questions why the way of the wicked prospers, contradicting the idea that God preserves the way of the righteous as implied in Psalm 37:18.
Jeremiah 12:1: Righteous [art] thou, O LORD, when I plead with thee: yet let me talk with thee of [thy] judgments: Wherefore doth the way of the wicked prosper? [wherefore] are all they happy that deal very treacherously? [talk...: or, reason the case with thee]
Contradiction with Habakkuk 1:13
This verse questions why God allows the wicked to swallow those more righteous, seemingly contradicting the idea of God's special oversight over the righteous lifespan mentioned in Psalm 37:18.
Habakkuk 1:13: [Thou art] of purer eyes than to behold evil, and canst not look on iniquity: wherefore lookest thou upon them that deal treacherously, [and] holdest thy tongue when the wicked devoureth [the man that is] more righteous than he? [iniquity: or, grievance]