2nd Samuel 9:1-10
You remember that Saul tried to kill David because he was jealous of him. Jonathan had been a special friend of David and helped him escape from his father. Later Jonathan was killed in a battle. After David had been King he remembered that he promised to never forget Jonathan’s kindness to him. Once David was King he asked about any living relatives of Jonathan that he might bless such a person. The one person they found was Jonathan’s son, Mephibosheth,