God is love, and he that dwelleth in love dwelleth in God.' Now, to begin with, let us distinctly understand that the New Testament answer, represented by John's great words, entirely endorses Isaiah's; and that the difference between the two is not that the Old Testament, as represented by psalmist and prophet, said, You must be righteous in order to dwell with God,' and that the New Testament says, You need not be.' Not at all! John is just as vehement in saying that nothing but purity can bind a man in thoroughly friendly and familiar conjunction with God as David or Isaiah was. He insists as much as anybody can insist upon this great principle, that if we are to dwell with God we must be like God, and that we are like God when we are like Him in righteousness and love. 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 get 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.
But that is not all. Isaiah says Righteousness,' John says Love,' which makes righteousness. And then he tells us how we may get love, having first told us how we may get righteousness: We love Him because He first loved us.' It is just as impossible for a man to work himself into loving God as it is for a man to work himself into righteous actions. There is no difference in the degree of impossibility in the two cases. But what we can do is, we can go and gaze at the thing that kindles the love; we can contemplate the Cross on which the great Lover of our souls died, and thereby we can come to love Him. John's answer goes down to the depths, for his notion of love is the response of the believing soul to the love of God which was manifested on the Cross of Calvary. To have righteousness we must have love; to have love we must look to the love that God has to us; to look rightly to the love that God has to us we must have faith. Now you have gone down to the very bottom of the matter. Faith is the first step of the ladder, and the second step is love and the third step is righteousness.
And so the New Testament, in its highest and most blessed declarations, rests itself firmly upon these rigid requirements of the old law. You and I, dear brethren, have but one way by which we can walk in the midst of that fire, rejoicing and unconsumed, namely that we shall know and believe the love which God hath to us, love Him back again with pure hearts fervently,' and in the might of that receptive faith and productive love, become like Him in holiness, and ourselves be baptized with the Holy Ghost and with fire.' Thus, fire-born and fiery, we shall dwell as in our native home, in God Himself.