The alternative of hypothetical universalism, according to which Christ's work is sufficient for all but efficient only for the elect, was alive and well in early Reformed thought. Moreover - and importantly for our purposes - this view was not regarded as an aberration but as a legitimate position that could be taken within the confessional bounds of Reformed thought. But that means that the Five Points aren't the non-negotiable conceptual core of Calvinism after all.
Oliver D. Crisp[John] Calvin is often identified with his account of predestination. Yet that appears in the third book of his Institutes, not the first.
Oliver D. CrispNo confession is inerrant; Reformed Christians are supposed to be those who seek to be constantly reformed according to the Word of God - and that includes our confessions as well.
Oliver D. Crisp