2 Samuel 9:10-11

9:10 You will cultivate the land for him – you and your sons and your servants. You will bring its produce and it will be food for your master’s grandson to eat. But Mephibosheth, your master’s grandson, will be a regular guest at my table.” (Now Ziba had fifteen sons and twenty servants.)

9:11 Ziba said to the king, “Your servant will do everything that my lord the king has instructed his servant to do.” So Mephibosheth was a regular guest at David’s table, just as though he were one of the king’s sons.