But let us remember that absolute cleansing from all sin is not essential, in order to have real participation in Jesus Christ. The Jew had to take every scrap of leaven out of his house before he began the Passover. If that were the condition for us, alas! for us all; but the effort after purity, though it has not entirely attained its aim, is enough. Sin abhorred does not prevent a man from participating in the Bread that came down from heaven.
Then observe, too, that for this power to cleanse ourselves, we must have had some participation in Christ, by which there is given to us that new life that conquers evil. In the words immediately preceding my text, the Apostle bases his injunction to purge out the old leaven on the fact that 'ye are unleavened.' Ideally, in so far as the power possessed by them was concerned, these Corinthians were unleavened, even whilst they were bid to purge out the leaven. That is to say, be what you are; realise your ideal, utilise the power you possess, and since by your faith there has been given to you a new life that can conquer all corruption and sin, see that you use the life that is given. Purge out the old leaven because ye are unleavened.
One last word--this stringent exhortation, which makes Christian effort after absolute purity a Christian duty, and the condition of participation in the Paschal Lamb, is based upon that thought to which I have already referred, of the diabolical power of infection which Evil possesses. Either you must cast it out, or it will choke the better thing in you. It spreads and grows, and propagates itself, and works underground through and through the whole mass. A water-weed got into some of our canals years ago, and it has all but choked some of them. The slime on a pond spreads its green mantle over the whole surface with rapidity. If we do not eject Evil it will eject the good from us. Use the implanted power to cast out this creeping, advancing evil. Sometimes a wine-grower has gone into his cellars, and found in a cask no wine, but a monstrous fungus into which all the wine had, in the darkness, passed unnoticed. I fear some Christian people, though they do not know it, have something like that going on in them.
It is possible for us all to keep this perpetual festival. To live in, on, for, Jesus Christ will give us victory over enemies, burdens, sorrows, sins. We may, if we will, dwell in a calm zone where no tempests rage, hear a perpetual strain of sweet music persisting through thunder peals of sorrow and suffering, and find a table spread for us in the presence of our enemies, at which we shall renew our strength for conflict, and whence we shall rise to fight the good fight a little longer, till we sit with Him at His table in His Kingdom, and 'eat, and live for ever.'