Contradiction with James 2:15-16
These verses speak of the importance of providing for those in need, which contrasts with the widow's initial predicament in 2 Kings 4:1 where she is left destitute.
James 2:15-16: If a brother or sister be naked, and destitute of daily food,
Contradiction with Proverbs 13:22
This verse highlights the value of leaving an inheritance for one's children, contrary to the situation in 2 Kings 4:1 where the widow's husband left her in debt.
Proverbs 13:22: A good [man] leaveth an inheritance to his children's children: and the wealth of the sinner [is] laid up for the just.
Contradiction with Matthew 6:34
Here, the emphasis is on not worrying about tomorrow, whereas in 2 Kings 4:1, the widow faces immediate worry over her sons being taken as slaves.
Matthew 6:34: Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day [is] the evil thereof.