Institutes of the Christian Religion (2 Volume Set)

by John Calvin

It is now clear that faith is a singular pledge of paternal love, treasured up for the sons whom he has adopted. Hence Christ elsewhere says, that the sheep follow the shepherd because they know his voice, but that they will not follow a stranger, because they know not the voice of strangers (John 10:4). But whence that distinction, unless that their ears have been divinely bored? For no man makes himself a sheep, but is formed by heavenly grace. And why does the Lord declare that our salvation will always be sure and certain, but just because it is guarded by the invincible power of God? (John 10:29). Accordingly, he concludes that unbelievers are not of his sheep (John 10:16). The reason is, because they are not of the number of those who, as the Lord promised by Isaiah, were to be his disciples. Moreover, as the passages which I have quoted imply perseverance, they are also attestations to the inflexible constancy of election.