Quote Originally Posted by Rhyfelwyr View Post
There is a difference between a sin and being sin, hence why some people say hate the sin and not the sinner. But Calvin clearly argues that we are sin. I'm too run down right now to look it up, but he argues with one passage where Paul calls various iniquities that he lists as being the "fruits of sin".
Institutes of the Christian Religion
Spoiler Alert, click show to read: 
But lest the thing itself of which we speak be unknown or doubtful, it will be proper to define original sin. I have no intention, however, to discuss all the definitions which different writers have adopted, but only to adduce the one which seems to me most accordant with truth. Original sin, then, may be defined a hereditary corruption and depravity of our nature, extending to all the parts of the soul, which first makes us obnoxious to the wrath of God, and then produces in us works which in Scripture are termed works of the flesh. This corruption is repeatedly designated by Paul by the term sin, (Gal. 5: 19;) while the works which proceed from it, such as adultery, fornication, theft, hatred, murder, revellings, he terms, in the same way, the fruits of sin, though in various passages of Scripture, and even by Paul himself, they are also termed sins. The two things, therefore, are to be distinctly observed, viz., that being thus perverted and corrupted in all the parts of our nature, we are, merely on account of such corruption, deservedly condemned by God, to whom nothing is acceptable but righteousness, innocence, and purity. This is not liability for another's fault. For when it is said, that the sin of Adam has made us obnoxious to the justice of God, the meaning is not, that we, who are in ourselves innocent and blameless, are bearing his guilt, but that since by his transgression we are all placed under the curse, he is said to have brought us under obligation. Through him, however, not only has punishment been derived, but pollution instilled, for which punishment is justly due.