Contradiction with 2 Samuel 9:7
Contradiction: 2 Kings 8:3 involves restitution of property to the woman, while 2 Samuel 9:7 speaks of Mephibosheth being provided for continually, without losing his inheritance in the first place.
2 Samuel 9:7: And David said unto him, Fear not: for I will surely shew thee kindness for Jonathan thy father's sake, and will restore thee all the land of Saul thy father; and thou shalt eat bread at my table continually.
Contradiction with Matthew 5:42
Contradiction: 2 Kings 8:3 involves a legal plea for restitution, whereas Matthew 5:42 encourages giving to those who ask without expecting anything in return.
Matthew 5:42: Give to him that asketh thee, and from him that would borrow of thee turn not thou away.
Contradiction with Philippians 4:11
Contradiction: 2 Kings 8:3 describes a request for restoration of material possessions, but Philippians 4:11 expresses a teaching of contentment irrespective of material circumstances.
Philippians 4:11: Not that I speak in respect of want: for I have learned, in whatsoever state I am, [therewith] to be content.