We find that although the whole tribe of Levi were, _as to standing_, "_joined with Aaron_," yet, as to _service_, they were divided into classes. "All had not the same office;" and this is what we might have expected, for, although in the matter _of life_ and _standing_ they were all _on a level_, yet, in the development of that life, and in the manifestation of the power of that standing, they would, no doubt, display different measures; and not only so, but there would also be seen an assignment to each of distinct position and line of service, which would serve to distinguish him from his brethren in a very marked and decided manner. And here I would observe that I know of nothing connected with the walk and service of the Christian which demands more attention than this point to which I am now alluding, viz., _unity_ in the matter of life and standing, and at the same time the greatest variety in the manifestation of character and in the line of service. A due attention to this important point would save us from much of that "unwise" comparing of ourselves and our service with the persons and services of others, which is most unholy, and, as a consequence, most unhealthy.[10] And not only would it lead thus to beneficial results in a negative point of view, it would also have a most happy effect in producing and cultivating originality and uniqueness of Christian character. But while there was this diversity in the line of service amongst the Levites, it is also to be remembered that there was _manifested unity_. The Levites were _one people_, and seen as such; they were "_joined_" with Aaron in the work of the tabernacle; moreover, THEY HAD ONE STANDARD, round which they _all_ rallied, and that was "the tabernacle of the congregation," the well known type of Christ in His character and offices. And, indeed, this was one of the ends which God had in view in calling out the Levites by His grace from amongst the people of Israel; it was that they should stand in marked association with Aaron and his sons, and in that association bear the tabernacle and all pertaining thereto on their shoulders, through the barren wilderness around.[11]