John Calvin, Predestination, and Means

"We must also carefully bear in mind the principle that I have laid down before, that when God displays his power through means (media) and secondary causes, that power of his is never to be separated from those means or inferior causes. It is the excess of a drunkard to say, 'God has decreed all that is to come to pass and that must come to pass; therefore, to interpose any care, study, or endeavor of ours is superfluous and vain.' But since God prescribes to us what we ought to do and wills...