'He that saith he hath fellowship with Him, and walketh in darkness, is a liar!' That is John's short way of gathering it all up. Righteousness is as essential in the gospel scheme for all communion and fellowship with God as ever it was declared to be by the most rigid of legalists; and if any of you have the notion that Christianity has any other terms to lay down than the old terms--that righteousness is essential to communion--you do not understand Christianity. If any of you are building upon the notion that a man can come into loving and familiar friendship with God as long as he loves and cleaves to any sin, you have got hold of a delusion that will wreck your souls yet,--is, indeed, harming, wrecking them now, and will finally destroy them if you do not got rid of it. Let us always remember that the declaration of my first text lies at the very foundation of the declaration of my second. What, then, is the difference between them? Why, for one thing it is this--ISAIAH tells us that we must be righteous, John tells us how we may be. The one says, 'There are the conditions,' the other says, 'Here are the means by which you can have the conditions.' Love is the productive germ of all righteousness; it is the fulfilling of the law. Get that into your hearts, and all these relative and personal duties will come. If the deepest, inmost life is right, all the surface of life will come right. Conduct will follow character, character will follow love. The efforts of men to make themselves pure, and so to come into the position of holding fellowship with God, are like the wise efforts of children in their gardens. They stick in their little bits of rootless flowers, and they water them; but, being rootless, the flowers are all withered to-morrow and flung over the hedge the day after. But if we have the love of God in our hearts, we have not rootless flowers, but the seed which will spring up and bear fruit of holiness.