It is a remarkable fact that all the heresies which have arisen in the Christian Church have had a decided tendency to ‘dishonor God and to flatter man’.
They have always had for their covert, if not for their open aim, the exaltation of human nature, and the casting down of the sovereignty of divine grace.
Robbing God of the glory which is due unto his name, these false prophets would shed a counterfeit luster upon the head of the rebellious and depraved creature.
On the other hand, the doctrines of the gospel, commonly known as the doctrines of grace, are distinguished for this peculiarity above every other, namely, that they sink the creature very low, and present the Lord Jehovah before us as sitting upon a throne,
high and lifted up.
So true is this, that the most uneducated Christian may, even if he is incapable of refuting an erroneous discourse, always be able to discover its untruthfulness, if it glorifies man at the expense of God.
The merest babe in grace may carry this test with him: in the midst of the diversities of opinion with which he is surrounded, he may always judge, and judge infallibly too, of the truth or falsehood of a doctrine by testing it thus:
“Does it glorify God?” If it is so, it is true.
“Does it exalt man?” Then it must be false.
Does it lay man very low, and speak of him in terms which tend to make him feel his degradation? Then doubtless it is full of truth.
And does it put the crown upon the head of God, and not upon the head of man’s free-will, or free-agency, or good works? Then assuredly it is a doctrine according to godliness,
for it is the very truth of the Lord our God.
C. H. Spurgeon (1834 – 1892)
A Particular Baptist Blog 
‘And does it put the crown upon the head of God, and not upon the head of man’s free-will, or free-agency, or good works?’. This is the essential straw man of a Calvinist’s argument. Equating free will with works (unless it is the limited free will to sin).
I understand Spurgeon often made statements in contradiction of his own beliefs in the doctrines of John Calvin. In regarding the doctrine of sovereignty over free will he made the statement – “a class of strong-minded hard-headed men who magnify sovereignty at the expense of (human) responsibility”. – Charles Haddon Spurgeon, ‘God’s will and man’s will’, No. 442 (Newington, Metropolitan Tabernacle; sermon delivered Sunday morning, March 30, 1862).
Again, Spurgeon on limited atonement – “What then? Shall we try to put another meaning into the text than that which it fairly bears? I trow not…You must, most of you, be acquainted with the general method in which our older Calvinistic friends deal with this text. “All men” say they “that is, some men”: as if the Holy Ghost could not have said, “some men” if He meant some men. “all men,” say they; “that is, some of all sorts of men”; as if the Lord could not have said, “All sorts of men” if He had meant that. The Holy Ghost by the apostle has written, “All men,” and unquestionably he means all men….My love of consistency with my own doctrinal views is not great enough to allow me knowingly to alter a single text of Scripture”. – C.H. Spurgeon, Metropolitan Tabernacle Pulpit, vol. 26, pages 49-52.