Thou therefore, thy sons, and thy servants
 Which were many, and whose numbers are after given: 
 shall till the land for him;
 manure it, plough it, sow it, and reap it: 
 and thou shall bring in [the fruits];
 the corn, and oil, and wine, the land produces: 
 that thy master's son may have food to eat;
 meaning either Micha, the son of Mephibosheth, since Mephibosheth seems to be distinguished from him, and opposed to him in the next clause: and who would stand in no need of food from any other quarter, being a guest at the king's table continually; or else Mephibosheth, who by this means would have a sufficiency for his son and servants, and in which Ziba's family and servants would have a share: 
 but Mephibosheth thy master's son shall eat always at my table;
 wherefore the land was to be tilled not for him personally, but for his family, and for what uses he should think fit to put the produce of it to: 
 now Ziba had fifteen sons and twenty servants:
 who were enough to cultivate a considerable quantity of land.