Contradiction with Proverbs 16:9
This verse suggests that man's plans are subject to the Lord's direction, which may contradict the assumed certainty of the kings' plan in 2 Kings 3:8.
Proverbs 16:9: A man's heart deviseth his way: but the LORD directeth his steps.
Contradiction with James 4:13-15
These verses caution against making definitive plans without considering God's will, contrasting with the definitive strategy discussed in 2 Kings 3:8.
James 4:13-15: Go to now, ye that say, To day or to morrow we will go into such a city, and continue there a year, and buy and sell, and get gain:
Contradiction with Psalm 33:10-11
These verses state that the Lord nullifies the plans of nations, which could contradict the success implied by the plan in 2 Kings 3:8.
Psalm 33:10-11: The LORD bringeth the counsel of the heathen to nought: he maketh the devices of the people of none effect. [bringeth: Heb. maketh frustrate]