There are many who would receive the truths of God's word, their judgment having been convinced by the clearest evidence; but the carnal desires, clamoring for gratification, control the intellect, and they reject truth because it conflicts with their lustful desires. The minds of many take so low a level that God cannot work either for them or with them. The current of their thoughts must be changed, their moral sensibilities must be aroused, before they can feel the claims of God. {CTBH 9.2}

Pride and fashion hold men and women in the veriest slavery to customs which are fatal to health and even to life itself. The appetites and passions, clamoring for indulgence, trample reason and conscience underfoot. This is the cruel work of Satan, and he is constantly putting forth the most determined efforts to strengthen the chains by which he has bound his victims. Those who have been all their lives indulging wrong habits do not always realize the necessity of a change. And many will persist in gratifying their desire for sinful pleasure at any cost. Let the conscience be aroused and much is gained. Nothing but the grace of God can convict and convert the heart; here alone can the slaves of custom obtain power to break the shackles which bind them. The self-indulgent must be led to see and feel that a great moral renovation is necessary if they would meet the claims of the divine law; the soul-temple has been defiled, and God calls upon them to arouse and strive with all their might to win back the God-given manhood which has been sacrificed through sinful indulgence. {4T 552.2}

When burdened, when pressed with temptation, when the feelings and desires of the natural heart are clamoring for the victory, earnest, fervent, importunate prayer in the name of Christ brings Jesus to your side as a helper, and through His name you gain the victory and Satan is vanquished. {OHC 25.2}

Divine truth can make little impression upon the intellect while the customs and habits are opposed to its principles. Those who are willing to inform themselves concerning the effect of sinful indulgence upon the health, and who commence the work of reform, even if it be from selfish motives, in so doing place themselves where the truth of God may find access to their hearts. And, on the other hand, those who are reached by the presentation of Scripture truth are then in a position where their consciences will be aroused upon the subject of health. They see and feel the necessity of breaking away from the tyrannizing habits and appetites which have ruled them so long. There are many who would receive the truths of God's word, their judgment having been convinced by the clearest evidence; but the carnal desires, clamoring for gratification, control the intellect, and they reject truth as falsehood, because it comes in collision with their lustful affections. {4T 553.1}

Satan will lead them on from step to step, as it were blindfolded, and with his suggestions will, as they advance, stir up the human passions to depravity which will prove their eternal ruin. There is already developing a strong inclination to that which is evil and destructive in its manifestation. Appetites and passions are clamoring for indulgence and gratification. Reason and conscience remonstrated at every step for a time, but the voice of Satan is heard presenting worldly lusts in attractive garments, and sin becomes attractive. They depart farther from the counsel of God and the authoritative voice speaking from His Word. These youth need to pray, "Lead us not into temptation, but deliver us from evil." {20MR 52.4}

No, but there is a distinction between soul and body. The soul is not the body, and the body is not the soul. And Ellen White didn't say that sin is a disease of the body.

The only condition upon which the freedom of man is possible is that of becoming one with Christ. "The truth shall make you free;" and Christ is the truth. Sin can triumph only by enfeebling the mind, and destroying the liberty of the soul. Subjection to God is restoration to one's self,--to the true glory and dignity of man. The divine law, to which we are brought into subjection, is "the law of liberty." James 2:12. {DA 466.5}

The service rendered in sincerity of heart has great recompense. "Thy Father which seeth in secret Himself shall reward thee openly." By the life we live through the grace of Christ the character is formed. The original loveliness begins to be restored to the soul. The attributes of the character of Christ are imparted, and the image of the Divine begins to shine forth. The faces of men and women who walk and work with God express the peace of heaven. They are surrounded with the atmosphere of heaven. For these souls the kingdom of God has begun. They have Christ's joy, the joy of being a blessing to humanity. They have the honor of being accepted for the Master's use; they are trusted to do His work in His name. {DA 312.2}

There is no soul without the body. Sure, your isolated quote, it says that sin is a disease of the soul. But put that with other quotations... Where do diseases of the body come from is they do not come from sin?

But rebirth restores to man the original lovliness, the true glory and dignity.

"Soul" here refers to the spiritual aspect of man. The disease of sin is in his spiritual nature, not in his physical nature. Of course sin affects the whole being, including the body, but the origin of sin is in the soul, not in the body.

M: But rebirth restores to man the original lovliness, the true glory and dignity.

R: However, this restoration is gradual, not instantaneous.

Jesus continued: "That which is born of the flesh is flesh; and that which is born of the Spirit is spirit." By nature the heart is evil, and "who can bring a clean thing out of an unclean? not one." Job 14:4. No human invention can find a remedy for the sinning soul. "The carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be." "Out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies." Romans 8:7; Matthew 15:19. The fountain of the heart must be purified before the streams can become pure. He who is trying to reach heaven by his own works in keeping the law is attempting an impossibility. There is no safety for one who has merely a legal religion, a form of godliness. The Christian's life is not a modification or improvement of the old, but a transformation of nature. There is a death to self and sin, and a new life altogether. This change can be brought about only by the effectual working of the Holy Spirit. {DA 172.1}

The life of the vine will be manifest in fragrant fruit on the branches. "He that abideth in Me," said Jesus, "and I in him, the same bringeth forth much fruit: for without Me ye can do nothing." When we live by faith on the Son of God, the fruits of the Spirit will be seen in our lives; not one will be missing. {DA 676.4}

God will accept only those who are determined to aim high. He places every human agent under obligation to do his best. Moral perfection is required of all. Never should we lower the standard of righteousness in order to accommodate inherited or cultivated tendencies to wrong-doing. We need to understand that imperfection of character is sin. All righteous attributes of character dwell in God as a perfect, harmonious whole, and every one who receives Christ as a personal Saviour is privileged to possess these attributes. {COL 330.2}