What does 2 Samuel 9:7 mean?

David told him, Don’t be afraid. I want to show you kindness for your father Jonathan’s sake. I’ll give you back all the land that belonged to your grandfather Saul, and you’ll always eat at my table. 2 Samuel 9:7 - Modern Text Bible

(David reassures Mephibosheth and promises to restore his family’s land and treat him like family.)