The Westminster Shorter Catechism

Q13. Did our first parents continue in the estate wherein they were created?

A. Our first parents,—being left to the freedom of their own will,—
fell from the estate wherein they were created,—by sinning against God.[1]

Proofs

[1] Genesis 3:6; Ecclesiastes 7:29; Hosea 6:7.

Comments

In his famous book, Human Nature in Its Fourfold State, the Scottish Puritan, Thomas Boston (1676–1732) tells us that the four states of human nature are: (a) Primitive Integrity; (b) Entire Depravity; (c) Begun Recovery; and (d) Consummate Happiness or Misery.

These four states, which are derived from the Scripture, correspond to the four states of man in relation to sin enumerated by Augustine of Hippo: (a) able to sin, able not to sin (posse peccare, posse non peccare); (b) not able not to sin (non posse non peccare); (c) able not to sin (posse non peccare); and (d) unable to sin (non posse peccare). The first state corresponds to the state of man in innocency, before the Fall; the second the state of the natural man after the Fall; the third the state of the regenerate man; and the fourth the glorified man.

It must be noted that in all four states, man is free to choose what to do or not to do according to his will. His will is free because it is not forced or compelled from without. However, his will is determined by his own moral inclinations. This means that while the glorified man will always choose to do good because his heart’s inclination is always to glorify God; the natural fallen man will always do what is evil (in God’s eyes), because his motives are never pure, and never to glorify God.

Before the Fall, man was able to choose to do either good or evil, his heart, and so his inclination and disposition, being innocent and not tainted by sin. But Adam’s state was mutable and when Satan tempted Eve, and then through Eve, tempted him, he chose to sin against God by eating the forbidden fruit and so fell from the estate of innocency.