"Man cannot be saved by perfect obedience, for he cannot render it; he cannot be saved by imperfect obedience, for God will not accept it." - from Spurgeon's Sermon Notes
Further recommended reading & listening:
The Best of The Daily Spurgeon
The Forgotten Spurgeon, by Iain Murray
A Defense of Calvinism - by Charles Spurgeon
Further recommended reading & listening:
The Best of The Daily Spurgeon
Spurgeon: The Child is the Father Of the Man
The Forgotten Spurgeon, by Iain Murray
