Rob Bell & his own Sabbath

"In order to maintain balance in his life, Bell maintains his Fridays as a personal sabbath, where he does not allow contact by electronic means, and has all pastoral duties transferred to other Mars Hill pastors." Wikipedia
Well, God already gave Rob Bell an actual Sabbath, not Friday (6th day), but the 7th day....
But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, Exodus 20:10