Sin will not only be striving, acting, rebelling, troubling, disquieting, but if let alone, if not continually mortified, it will bring forth great, cursed, scandalous, soul-destroying sins.

Owen's treatise on putting sin to death in the life of a believer. He shows why mortification is necessary and how it is worked by the Spirit.
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- ccel.orgChapter VIIUsed on 1 quote
- ccel.orgChapter XIUsed on 1 quote
- ccel.orgOf the Mortification of Sin in BelieversUsed on 1 quote
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Quotes
He that is appointed to kill an enemy, if he leave striking before the other ceases living, doth but half his work.
A man may beat down the bitter fruit from an evil tree until he is weary; whilst the root abides in strength and vigour, the beating down of the present fruit will not hinder it from bringing forth more. This is the foll…
As a man nailed to the cross; he first struggles, and strives, and cries out with great strength and might, but, as his blood and spirits waste, his strivings are faint and seldom, his cries low and hoarse, scarce to be…
A sin is not mortified when it is only diverted. He that changes pride for worldliness, sensuality for Pharisaism, vanity in himself to the contempt of others, let him not think that he hath mortified the sin that he see…
Every unmortified sin will certainly do two things: it will weaken the soul, and deprive it of its vigour; and it will darken the soul, and deprive it of its comfort and peace. As sin weakens, so it darkens the soul. It…
The life, vigour, and comfort of our spiritual life depend much on our mortification of sin. Strength and comfort, and power and peace, in our walking with God, are the things of our desires.
There is not the best saint in the world but, if he should give over this duty, would fall into as many cursed sins as ever any did of his kind.
The root of an unmortified course is the digestion of sin without bitterness in the heart. When a man hath confirmed his imagination to such an apprehension of grace and mercy as to be able, without bitterness, to swallo…
When a man fighteth against his sin only with arguments from the issue or the punishment due unto it, this is a sign that sin hath taken great possession of the will, and that in the heart there is a superfluity of naugh…
The vigour, and power, and comfort of our spiritual life depends on the mortification of the deeds of the flesh.
Not to be daily employing the Spirit and new nature for the mortifying of sin is to neglect that excellent succor which God has given us against our greatest enemy. If we neglect to make use of what we have received, God…
To mortify a sin is not utterly to kill, root it out, and destroy it, that it should have no more hold at all nor residence in our hearts. It is true this is that which is aimed at; but this is not in this life to be acc…
Let not that man think he makes any progress in holiness who walks not over the bellies of his lusts.
A man may easier see without eyes, speak without a tongue, than truly mortify one sin without the Spirit.
Sin does not only still abide in us, but is still acting, still laboring to bring forth the deeds of the flesh. When sin lets us alone we may let sin alone; but as sin is never less quiet than when it seems to be the mos…
Let faith look on Christ in the gospel as he is set forth dying and crucified for us. Look on him under the weight43 of our sins, praying, bleeding, dying; bring him in that condition into thy heart by faith; apply his b…
Bring thy lust to the gospel, not for relief, but for further conviction of its guilt; look on Him whom thou hast pierced, and be in bitterness. Say to thy soul, "What have I done? What love, what mercy, what blood, what…
Let not man think he makes any progress in holiness who walks not over the bellies of his lusts.
Sin aims always at the utmost; every time it rises up to tempt or entice, might it have its own course, it would go out to the utmost sin in that kind. Every unclean thought or glance would be adultery if it could; every…
The choicest believers, who are assuredly freed from the condemning power of sin, ought yet to make it their business all their days to mortify the indwelling power of sin.
Do you mortify; do you make it your daily work; be always at it while you live; cease not a day from this work; be killing sin or it will be killing you.
Let, then, thy soul by faith be exercised with such thoughts and apprehensions as these: "I am a poor, weak creature; unstable as water, I cannot excel. This corruption is too hard for me, and is at the very door of ruin…
Be killing sin or it will be killing you.
There is no way of deliverance from the state and condition of being in the flesh, but by the Spirit of Christ.
Set faith at work on Christ for the killing of thy sin. His blood is the great sovereign remedy for sin-sick souls. Live in this, and thou wilt die a conqueror; yea, thou wilt, through the good providence of God, live to…
Do you mortify; do you make it your daily work; be always at it whilst you live; cease not a day from this work; be killing sin or it will be killing you.