The very notion of a kingdom of God established in reality, however imperfectly here on earth, demands that somewhere, and some time, and somehow, there should be an adequate, a universal and an eternal manifestation and establishment of it. If, here and now, dotted about over the world, there are men who, with much hindrance and many breaks in their obedience, are still the subjects of that realm, and trying to do the will of God, unless we are reduced to utter bewilderment intellectually, there must be a region in which that will shall be perfectly done, shall be continually done, shall be universally done. The obedience that we render to Him, just because it is broken by so much rebellion, slackened by so much indifference, hindered by so many clogs, hampered by so many limitations, points, by its attainments and its imperfections alike, to a region where the clogs and limitations and interruptions shall have all vanished, and the will of the Lord shall be the life and the light thereof. So there rises up before us the fair prospect of that heavenly kingdom, in which all that here is interrupted and thwarted tendency shall have become realised effect. That state must necessarily be a state of continual advance. For if greatness consists in apprehension and appropriation of Christ and His work, there are no limits to the possible expansion and assimilation of a human heart to Him, and the wealth of His glory is absolutely boundless. An infinite Christ to be assimilated, and an indefinite capacity of assimilation in us, make the guarantee that eternity shall see the growing progress of the subjects of the kingdom, in resemblance to the King. If there is this endless progress, which is the only notion of heaven that clothes with joy and peace the awful thought of unending existence, then there will be degrees there too, and the old distinction of 'least' and 'greatest' in the kingdom will subsist to the end. The army marches onwards, but they are not all abreast. They that are in front do not intercept any of the blessings or of the light that come to the rearmost files; and they that are behind are advancing and envy not those who lead the march.