capable of producing. God is 'not a man that He should lie, nor the son of man that He should repent.' Men begin grand designs which never get further than the paper that they are drawn on; or they build a porch, and then they are bankrupt, or change their minds, or die, and the palace remains unrealised, and all that pass by mock and say, 'This man began to build and was not able to finish.' But God's designs are certain of accomplishment. Unless we are to be reduced to a state of utter intellectual bewilderment and confusion, and forgo our belief in His veracity and resources to execute His designs, the design that lies in the calling must needs lead on to the realm of perfectness. If we consider the agent by which it is effected, even the risen Christ; if we consider the cost at which it was accomplished, even the death on the Cross, the mission of His Son, and His assumption of the limitations of an incarnate life; if we consider the manifest potencies of the power that He has brought into operation in the present Christian life; and if we consider, side by side with these, the stark, staring contradictions and as manifest inevitable limitations of the effects of that power, His calling carries in its depths the assurance that what He means shall be done, that Jesus Christ has not died in vain, that He has not ascended to fill a solitary throne, but is the Firstfruits of a great harvest; and that we shall one day be all that it is in the gospel of our salvation to make us, unhindered by the limitations and unthwarted by the antagonisms of this poor human life of ours. Unless there be a heaven in which all desires shall be satisfied, all evils removed, all good perfected, all ragged trees made symmetrical and full-grown, and all souls that love Him radiant with His own perfect image, then the light that seemed a light from heaven is the most delusive of all the marsh-fires of earth, and nothing in the illusions of sense or of men's cunning is so cruel or so tragic as the calling that seemed to be the voice of God, and summoned us to a heaven which was only a dream. II. And so, secondly, notice how this hope of our text is in some sense the very topstone of the Christian life.