They 'know not whither it goeth.' And even those who themselves possess it know not, nor shall know, through the ages of a progressive approximation to the ever-approached and never-attained perfection. 'This spake He of the Holy Ghost, which they that believe on Him should receive.' Trust Christ, and 'the law of the Spirit of Life in Christ Jesus shall make you free from the law of sin and death.' THE BRAZEN SERPENT 'Moses lifted up the serpent in the wilderness.'—JOHN iii. 14. This is the second of the instances in this Gospel in which our Lord lays His hand upon an institution or incident of the Old Testament, as shadowing forth some aspect of His work. In the first of these instances, under the image of the ladder that Jacob saw, our Lord presented Himself as the sole medium of communication between heaven and earth; here He goes a step further into the heart of His work, and under the image, very eloquent to the Pharisee to whom He was speaking, of the brazen serpent lifted up on the pole in the desert, proclaims Himself as the medium of healing and of life to a poisoned world. Now, Nicodemus has a great many followers to-day. He took up a position which many take up. He recognised Christ as a Teacher, and was willing to accord to the almost unknown young man from Galilee the coveted title of 'Rabbi.' He came to Him with a little touch of condescension, and evidently thought that for him, a ruler of the Jews, a member of the upper and educated classes, to be willing to speak of Jesus as a Teacher, was an endorsement that the young aspirant might be gratified to receive. 'Rabbi, _we_ know that Thou art a Teacher sent from God'—but he stopped there. He is not the only one who compliments Jesus Christ, while he degrades Him from His unique position. Now, to this inadequate conception of our Lord's Person and work, Christ opposed the solemn insistence on the incapacity of human nature as it is, to enter into communion with, and submission to, God. And then He passes on to speak—in precise parallelism with the position that He took up when He likened Himself to the Ladder of Jacob's vision—of Himself as being the Son of Man that came down from Heaven, and therefore is able to reveal heavenly things. In my text He further unveils in symbol the mystery and dignity of His Person and of His work, whilst He speaks of a mysterious lifting up of this Son of Man who came down from heaven. These are the truths that the conception of Christ as a great Teacher needs for its completion; the contrariety of human nature with the divine will, the Incarnation of the Son of God, the Crucifixion of the Incarnate Son. And so we have here three points, to which I desire to turn, as setting forth the conception of His own work which Jesus Christ presented as completing the conception of it, to which Nicodemus had attained. I. There is, first, the lifting up of the Son of Man.