Thus it is Christ's work as Redeemer, Christ's sacrifice on the Cross, Christ's power as bringing to the world a new and holy life, and breathing it into all that trust in Him, which make the very centre of His work. Set by the side of that this other, 'Thou art a Teacher sent from God.' Ah, brethren, that will not do; it will not do for you and me! We want something a great deal deeper than that. The secret of Jesus is not disclosed until we have passed into the inner shrine, where we learn that He is the Sacrifice for the world, and the Source and Fountain of a new life. I beseech you, take Christ's way of dealing with this certificate of His character given by the Rabbi who did not know his own necessities, and ponder it. Mark the underlying principle which is here—viz. if you want to understand Christ you must understand sin; and whoever thinks lightly of it will think meanly of Him. An underestimate of the reality, the universality, the gravity of the fact of sin lands men in the superficial and wholly impotent conception, 'Rabbi! Thou art a Teacher sent from God.' A true knowledge of myself as a sinful man, of my need of pardon, of my need of cleansing, of my need of a new nature, which must be given from above, and cannot be evolved from within, leads me, and I pray it may lead you, to cast yourself down before Him, with no complaisant words of intellectual recognition upon your lips, but with the old cry, 'Lord! be merciful to me a sinner.' III. And now, dear friends, one last word. Notice when and where this imperfect disciple was transformed into a courageous confessor. We do not know what came immediately of this conversation. We only know that some considerable time after, Nicodemus had not screwed himself up to the point of acknowledging out and out, like a brave man, that he was Christ's follower; but that he timidly ventured in the Sanhedrim to slip in a remonstrance ingeniously devised to conceal his own opinions, and yet to do some benefit to Christ, when he said, 'Does our law judge any man before it hear him?' And, of course, the timid remonstrance was swept aside, as it deserved to be, by the ferocious antagonism of his co-Sanhedrists. But when the Cross came, and it had become more dangerous to avow discipleship, he plucked up courage, or rather courage flowed into him from that Cross, and he went boldly and 'craved the body of Jesus,' and got it, and buried it. No doubt when he looked at Jesus hanging on the Cross, he remembered that night in Jerusalem when the Lord had said, 'The Son of Man must be lifted up,' and he remembered how He had spoken about the serpent lifted in the wilderness, and a great light blazed in upon him, which for ever ended all hesitation and timidity for him. And so he was ready to be a martyr, or anything else, for the sake of Him whom he now found to be far more than a 'Teacher,' even the Sacrifice by whose stripes he was healed.