2 Samuel 9:9-10

9Then David sent his men to fetch Saul's servant, Ziba. David said to him, ‘I have given everything that belonged to Saul or his family to your master's grandson, Mephibosheth.

10You, your sons and your servants must work on the land for him. You must grow crops that will be food for your master's grandson to eat. But Mephibosheth will always be able to eat with me.’ Ziba himself had 15 sons and 20 servants.