“Living itself is the source of sin.”

John Knox as portrayed in Bothwell : A Tragedy (1874) Act I, Sc. 2.
Bothwell : A Tragedy (1874)
Context: Sins are sin-begotten, and their seed
Bred of itself and singly procreative;
Nor is God served with setting this to this
For evil evidence of several shame,
That one may say, Lo now! so many are they;
But if one, seeing with God-illumined eyes
In his full face the encountering face of sin,
Smite once the one high-fronted head, and slay,
His will we call good service. For myself,
If ye will make a counsellor of me,
I bid you set your hearts against one thing
To burn it up, and keep your hearts on fire,
Not seeking here a sign and there a sign,
Nor curious of all casual sufferances,
But steadfast to the undoing of that thing done
Whereof ye know the being, however it be,
And all the doing abominable of God.
Who questions with a snake if the snake sting?
Who reasons of the lightning if it burn?
While these things are, deadly will these things be;
And so the curse that comes of cursed faith.

Christ's Object Lessons (1900)
Context: Through the creation we are to become acquainted with the Creator. The book of nature is a great lesson book, which in connection with the Scriptures we are to use in teaching others of His character, and guiding lost sheep back to the fold of God. As the works of God are studied, the Holy Spirit flashes conviction into the mind. It is not the conviction that logical reasoning produces; but unless the mind has become too dark to know God, the eye too dim to see Him, the ear too dull to hear His voice, a deeper meaning is grasped, and the sublime, spiritual truths of the written word are impressed on the heart.
In these lessons direct from nature, there is a simplicity and purity that makes them of the highest value. All need the teaching to be derived from this source. In itself the beauty of nature leads the soul away from sin and worldly attractions, and toward purity, peace, and God.

Source: Discipleship (1937), The Disciple and Unbelievers, p. 184.

Source: A Call to Prayer

"Repentance and Impenitence" p. 369
Lectures on Systematic Theology (1878)

Source: The Picture of Dorian Gray

Costly Grace, p 43.
Costly Grace
Context: Cheap grace means grace as a doctrine, a principle, a system. It means forgiveness of sins proclaimed as a general truth, the love of God taught as the Christian "conception" of God. An intellectual assent to that idea is held to be of itself sufficient to secure remission of sins. The church which holds the correct doctrine of grace has, it is supposed, ipso facto a part of that grace. In such a Church the world finds a cheap covering for its sins; no contrition is required, still less any real desire to be delivered from sin. Cheap grace therefore amounts to a denial of the living Word of God, in fact, a denial of the Incarnation of the Word of God.
Cheap grace means the justification of sin without the justification of the sinner. Grace alone does everything, they say, and so everything can remain as it was before.

Integral Humanism, (1936, Notre Dame Edition), p. 154.

The Whig Interpretation of History (1931)