Contradiction with Proverbs 22:6
This verse advises to train up a child in the way he should go, suggesting a long-term view of child-rearing with expected results, whereas 2 Kings 4:18 describes an immediate event concerning a child's sudden ailment without mentioning upbringing.
Proverbs 22:6: Train up a child in the way he should go: and when he is old, he will not depart from it. [Train...: or, Catechise] [in...: Heb. in his way]
Contradiction with John 9:3
This verse explains that neither the man nor his parents sinned, but the situation was to show the works of God, which contradicts the notion of sin-related consequences as implied in some interpretations of illness or misfortune; whereas 2 Kings 4:18 describes an ailment but doesn't attribute it to any sin or immediate divine purpose.
John 9:3: Jesus answered, Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him.
Contradiction with James 1:2-4
This verse encourages viewing trials as a source of joy and growth, contrasting with the emotional distress and urgency depicted in 2 Kings 4:18, where the focus is on the distress and crisis from the child's ailment.
James 1:2-4: My brethren, count it all joy when ye fall into divers temptations; [temptations: or, trials]