So the king answered, "I will give them." The king exempted Mephibosheth, the son of Saul's son Jonathan, because of the promise to the LORD that existed between David and Saul's son Jonathan.

And, King Asa, published it unto all Judah, none was exempted, so they carried away the stones of Ramah, and the beams thereof, wherewith Baasha had built, - and King Asa built therewith Geba of Benjamin, and Mizpah.

but if you were exempted from that discipline which others are subject to, then are you bastards, and not sons.