There is not a word, rightly understood in the Scriptures, in the whole New Testament that disparages or ignores or sets aside the Law of God. As the Apostle Paul comes to the climax of his argument, the great end and purpose towards which he has been advancing, he writes: “that the righteousness of the Law might be fulfilled in us” (Romans 8:4). Jesus Christ shall destroy the work of the devil, restore man, and enable him to walk in the light.
What the law tried to do by a restraining power from without, the gospel does by an inspiring power from within. That is the difference. I could not keep it in the letter, but, united to my heavenly Bridegroom, I can keep it in the Spirit. He fills me with His love, and this enables me to keep the law, for love is the fulfilling of the law.
The apostle evidently considered this fulfillment of the law of righteousness in us as the highest end of our existence and of redemption; for he says, God sent His Son that the righteousness of the law may be fulfilled in us.
How? We shall be delivered from the reigning, condemning power of the law by virtue of an infinite, vicarious sacrifice punished in our stead, and then, married to Him, we shall serve in the newness of the spirit, and not in the oldness of the letter.
Now let us look at the fruit brought forth. Those people who are thus united to Christ fulfill the law in their affections. It is commonly said that if you get hold of the affections of a man or a woman you get hold of him or her. So you do. This is the touchstone. If you want to keep the precious things you have, hold them in subordination to Him. Oh, if Christ had your affections, how it would operate in everything!
This fruit will also appear in our family relations. When we have the fullness of love, it enables us to love God best and our neighbor as our self.
This fruit will also appear in our church relations. Is it not a fact that we are each other’s keeper? Is it not a fact that God will require our influence over other souls? I believe it.
And now let us go down on our knees before God and ask Him to work this love in us and give us this spirit, that we may thus fulfill this law in all its relations.
Catherine Booth, Aggressive Christianity