1 Chronicles 21:3

But my lord the king, are they not all my lord's servants? The place of this perfectly intelligible sentence, indicating that Joab discerned the object of David in desiring the numbering of the people, is occupied in the Book of Samuel by the words, "And that the eyes of my lord the king may see it;" which some for no very evident reason prefer. It was, no doubt, a very radical element of David's sin in this matter that he was thinking of the nation too much as his own servants, instead of as the servants of his one Master. The Lord ever knoweth who are his, and numbereth not only them and their names, but their every sigh, tear, prayer. A cause of trespass . This clause may be explained as though trespass was equivalent to the consequences, i.e. the punishment of trespass. This. however, rather tends to explain away than to explain a phrase. More probably the deeper meaning is that, in the fact of the numbering, nation and king would become one in act, and would become involved together in indisputable sin. Though there were no unfeigned assent and consent in the great body of the nation to the numbering, yet they would become participators in the wrong-doing. It would further seem evident, from Joab addressing these words to the king, that it was a thing familiarly known and thoroughly understood that the course David was now bent on following was one virtually, if not actually, prohibited, and not one merely likely to be displeasing to God on account of any individual disposition in David to be boastful or self-confident. Otherwise it would be scarcely within the province of Joab either to express or suppose this of his royal master.