Our sinful natures are neither removed at our regeneration nor refined by our sanctification. -- John BlanchardIn the conversion of man, the properties of our original nature remain entire. -- John Calvin
In youth, mid-age, and now after many battles, I find nothing in me but vanity and corruption. -- John Knox
I more fear what is within me than what comes from without. -- Martin Luther
Original sin is in us, like the beard. We are shaved today and look clean, and have a smooth chin; tomorrow our beard has grown again, nor does it cease growing while we remain on earth. -- Martin Luther
It is one thing for sin to live in us; it is another for us to live in sin. - John Murray I find not one corruption of my vile heart is dead, though some seem now and then asleep. --John Newton
I have a vile heart, capable of every evil; and I, in myself, am as prone to change as a weathercock. --John Newton
The flesh is radically and wholly evil. -- A. W. Pink
There is far more wickedness in all our hearts than we know. -- J. C. Ryle
All the devils in hell and tempters on earth could do us no injury if there were no corruption in our own natures. -- C. H. Spurgeon
Beware of no man more than of yourself; we carry our worst enemies within us. -- C. H. Spurgeon
The saints are sinners still. -- C. H. Spurgeon
There is no doctrine more true to experience than this, that corruption remains even in the hearts of the regenerate, and that when we would do good evil is present with us. -- C. H. Spurgeon
There may be persons who can always glide along like a tramcar on rails without a solitary jerk, but I find that I have a vile nature to contend with, and spiritual life is a struggle with me. I have to fight from day to day with inbred corruption, coldness, deadness, barrenness, and if it were not for my Lord Jesus Christ my heart would be as dry as the heart of the damned. -- C. H. Spurgeon
Our old nature is no more extinct than the devil; but God's will is that the dominion of both should be broken. -- John R. W. Stott
Human nature ("flesh")... is not a green apple to be perfected by mere growth, but an apple with a worm at the core, which left to itself will surely rot and perish. -- Augustus H. Strong
The human personality has... been invaded by an alien army which is always campaigning within it. -- R. V. G. Tasker
Though we (as Christians) are like Christ, having the firstfruits of the Spirit, yet we are unlike him, having the remainders of the flesh. -- Thomas Watson
Original sin is a sea that will not, in this life, be dried up. -- Thomas Watson
Thomas Watson, "[Jesus] alone is the Prince of Preachers. He alone is the best of expositors."