2. In the case of the men to whom the apostles preached on the day of Pentecost, the Spirit used a rational moral influence through the words of Peter's sermon, which conveyed ideas that swayed their minds and hearts. It is claimed by some that both of these methods are used by the Spirit to-day. The modern teaching concerning the first of these influences is well set forth in the following selection from a widely known book by L.B. Dunn, entitled "The Mission of the Spirit": "Even where the light of the gospel does not shine, and the institutions of the gospel are not enjoyed, there the Spirit acts directly upon man's heart and conscience, writes the law of God upon his mind, gives him the sense of sin and the need of forgiveness. Hence, wherever man is, there the Comforter is at work upon his heart and mind. The divine influence is imparted _unconditionally_ and _irresistibly_. The Holy Spirit is ever employed to bring man back to God; and _whether he desires it or not_, whether he is _willing_ or _unwilling_, still the Comforter comes to him with his heavenly illumination, his divine influence, convincing him of sin, and his consequent need of the mercy of God. May I not truly say that man really _has no choice_ in the matter as to whether he will or will not have this divine influence upon his soul? _He is, he must be_, enlightened and convinced, _whether he will hear or forbear_, whether he _will be saved or damned_. He _can not prevent_ the entrance of the Spirit into his heart." In connection with the above we quote also from a sermon in "The Baptist Pulpit," by Rev. J.W. Hayhurst: "God has given us no means by which the conversion of sinners, or the general revival of religion, can be effected, irrespective of the _direct_ agency of the Spirit. The gospel itself _will not do it_." These quotations give us a pretty clear and explicit statement of the theory of the direct mechanical and _immediate_ operation of the Holy Spirit upon the human spirit.