On the contrary, therefore, Christ declares that the doctrine of the Gospel, though it is preached to all without exception, cannot be embraced by all, but that a new understanding and a new perception are requisite; and, therefore, that faith does not depend on the will of men, but that it is God who gives it.
John Calvin (2012). “John Calvin's Commentaries On The Gospel Of John Vol. 1 (Annotated Edition)”, p.231, Jazzybee Verlag