Mark 3:20 - Albert Barnes' Notes on the Bible

They could not so much as eat bread - Their time and attention were so occupied that they were obliged to forego their regular meals. The affairs of religion may so occupy the attention of ministers and others as to prevent their engaging in their customary pursuits. Religion is all-important - far more important than the ordinary business of this life; and there is nothing unreasonable if our temporal affairs sometimes give way to the higher interests of our own souls and the souls of others. At the same time, it is true that religion is ordinarily consistent with a close attention to worldly business. It promotes industry, economy, order, neatness, and punctuality - all indispensable to worldly prosperity. Of these there has been no more illustrious example than that of our Saviour himself.