force in the christian life

On faith, love, and the force of the Holy Spirit in the Christian life, J. Gresham Machen writes:

Thus the Christian life, though it begins by a momentary act of God, is continued by a process. In other words—to use theological language—justification and regeneration are followed by sanctification. In principle the Christian is already free from the present evil world, but in practice freedom must still be attained. Thus the Christian life is not a life of idleness, but a battle.

That is what Paul means when he speaks of faith working through love (Gal. v. 6). The faith that he makes the means of salvation is not an idle faith, like the faith which is condemned in the Epistle of James, but a faith that works. The work that it performs is love, and what love is Paul explains in the last section of the Epistle to the Galatians. Love, in the Christian sense, is not a mere emotion, but a very practical and a very comprehensive thing. It involves nothing less than the keeping of the whole law of God. “The whole law is fulfilled in one word, even in this: Thou shalt love thy neighbor as thyself.” Yet the practical results of faith do not mean that faith itself is a work. It is a significant thing that in that last “practical” section of Galatians Paul does not say that I faith produces the life of love; he says that the Spirit of God produces it. The Spirit, then, in that section is represented as doing exactly what in the pregnant words, “faith working through love,” is attributed to faith. The apparent contradiction simply leads to the true conception of faith. True faith does not do anything. When it is said to do something (for example, when we say that it can remove mountains), that is only by a very natural shortness of expression. Faith is the exact opposite of works; faith does not give, it receives. So when Paul says that we do something by faith, that is just another way of saying that of ourselves we do nothing; when it is said that faith works through love that means that through faith the necessary basis of all Christian work has been obtained in the removal of guilt and the birth of the new man, and that the Spirit of God has been received—the Spirit who works with and through the Christian man for holy living. The force which enters the Christian life through faith and works itself out through love is the power of the Spirit of God.