'Show Kindness' in the Bible

Then was Abner very angry for the words of Ishbosheth, and said, "Am I a dog's head that belongs to Judah? Today I show kindness to the house of Saul your father, to his brothers, and to his friends, and have not delivered you into the hand of David; and yet you charge me this day with a fault concerning this woman.

David said, "I will show kindness to Hanun the son of Nahash, as his father showed kindness to me." So David sent by his servants to comfort him concerning his father. David's servants came into the land of the children of Ammon.