'Show Kindness' in the Bible

Then Abner was very angry for the words of Ish-bosheth, and said, Am I a dog's head that belongs to Judah? This day I show kindness to the house of Saul thy father, to his brothers, and to his friends, and have not delivered thee i

And 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. And David's servants came into the land of the sons of Ammon.