We cannot all of us do the same kind of work, but every one must labor each for himself,--a husband in a different sphere from the wife, a servant in a different sphere from the master, and so throughout. And it is a foolish thing to preach that we should all do one work, as those senseless preachers have done who preach the legends of the saints,--that _these_ saints have done _that_ work, _those_, another, and then insist and say we should do the same. It is doubtless true that Abraham did a good work, highly to be esteemed, when he offered up his son, since this was particularly commanded him of God. When the heathen did the same and would sacrifice their children likewise, this was an act of cruelty in the sight of God. So, also, King Solomon did well in building the temple, and God justly rewarded him for it. And our blind fools, now, would also do the same,[3] and preach that we must build churches and temples for God, while God has given us no command on the subject. So it now comes to pass, that men busy themselves with a single kind of employment, and have many views in it directly in opposition to the Gospel. [Footnote 3: Luther here doubtless refers to what he regarded as the foolish project of the Pope in attempting to build the church of St. Peter, at Rome,--the project which sent Tetzel into Germany, and made the sale of indulgences so common and obnoxious.--[_Trans._]] But this is what should be taught, that there should be a single aim and many employments, one heart and many hands: all should not follow one business, but every one should attend to his own; otherwise there will not remain unity of aim and heart. As to what is external, it must be permitted to remain of a manifold character, so that every one abide in that which has been committed to him, and the work that he has in hand. This is a true doctrine, and it is exceedingly necessary that it should be well understood; for the devil expends his care particularly on this, and has brought things into such a state, that judgment is passed on the employment, and every one thinks that his own should be counted better than another's; hence it has come to pass, that men are so disunited one with another, monks against priests, one Order against another, for every one has wished to do the best work: thus they must satisfy themselves, and they have given themselves up to the Order, and think this Order is better than that. There is that of the Augustines against that of the Preaching Monks, that of the Carthusians against the Barefooted Friars, and nowhere is there greater want of unanimity than among the Orders.