Contradiction with Proverbs 13:11
Job 20:18 suggests not enjoying wealth from labor, but Proverbs 13:11 states wealth gained by labor shall increase.
Proverbs 13:11: Wealth [gotten] by vanity shall be diminished: but he that gathereth by labour shall increase. [by labour: Heb. with the hand]
Contradiction with Proverbs 15:6
Job 20:18 implies wealth will be given back, while Proverbs 15:6 suggests the house of the righteous is filled with treasure.
Proverbs 15:6: In the house of the righteous [is] much treasure: but in the revenues of the wicked is trouble.
Contradiction with Psalm 112:3
Job 20:18 indicates loss of wealth, whereas Psalm 112:3 declares wealth and riches are in the house of the righteous.
Psalm 112:3: Wealth and riches [shall be] in his house: and his righteousness endureth for ever.
Contradiction with Proverbs 10:22
Job 20:18 suggests loss without enjoyment, while Proverbs 10:22 says the blessing of the Lord brings wealth without sorrow.
Proverbs 10:22: The blessing of the LORD, it maketh rich, and he addeth no sorrow with it.
Contradiction with Ecclesiastes 5:19
Job 20:18 implies not eating of it, contrary to Ecclesiastes 5:19, which says it’s a gift to enjoy wealth.
Ecclesiastes 5:19: Every man also to whom God hath given riches and wealth, and hath given him power to eat thereof, and to take his portion, and to rejoice in his labour; this [is] the gift of God.