From a sermon preached by C.H. Spurgeon on Acts 15:11
“By grace are ye saved through faith; and that not of yourselves: it is the gift of God: not of works, lest any man should boast.” This is the old reformation doctrine. This is the doctrine which will shake the very gates of hell, if it be but faithfully preached. O for an army of witnesses to publish abroad the gospel of grace in its sovereignty, omnipotence, and fullness. If you are ever to get comfort, believe me, dear hearer, you must receive the doctrine of salvation by free grace into your soul as the delight and solace of your heart, for it is the living truth of the living God. Not by ritualism, not by good works, not by our own unaided free will are we saved, but by the grace of God alone.