God has endowed the will of man with that natural liberty, that is neither forced, nor by any absolute necessity of nature determined to good or evil.
Man, in his state of innocency, had freedom and power to will and to do that which was good, and well pleasing to God; but yet, subject to change, so that he might fall from it.
Man, by his fall into a state of sin, has wholly lost all ability of will to any spiritual good accompanying salvation: so as, a natural man, being altogether averse from that good, and dead in sin, is not able, by his own strength, to convert himself, or to prepare himself to it.
When God converts a sinner, and translates him into the state of grace, he frees him from his natural bondage under sin; and, by his grace alone, enables him freely to will and to do that which is spiritually good; yet so, as that by reason of his remaining corruption, he does not perfectly, nor only, will that which is good, but does also will that which is evil.
The will of man is made perfectly and immutably free to do good alone, in the state of glory only.