From the Baptist Confession of Faith;
6.3 They being the root, and by Gods appointment, standing in the room and stead of all mankind, the guilt of this sin was imputed, and their corrupted nature conveyed, to all their posterity descending from them by ordinary generation. Their descendants are therefore conceived in sin, and are by nature the children of wrath, the servants of sin, and the subjects of death and all other miseries, spiritual, temporal, and eternal, unless the Lord Jesus sets them free.
4 All actual transgressions proceed from this original corruption, by which we are utterly indisposed, disabled, and made opposite to all good, and wholly inclined to all evil.
5 During this life the corruption of nature remains in those who are regenerated, and although it is pardoned and mortified through Christ, yet this corrupt nature and all its motions are truly and properly sinful.
9.2 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 he was unstable, so that he might fall from this condition.
9.3 Man, by his fall into a state of sin, has completely lost all ability of will to perform any of the spiritual good which accompanies salvation. As a natural man, he is altogether averse to spiritual good, and dead in sin. He is not able by his own strength to convert himself, or to prepare himself for conversion.
9.4 When God converts a sinner, and translates him into a state of grace, He frees him from his natural bondage to sin, and by grace alone He enables him freely to will and to do that which is spiritually good. But because of his remaining corruptions he does not only (or perfectly) will that which is good, but also wills that which is evil.
9.5 The will of man will only be made perfectly and immutably free to will good alone in the state of glory.