"But the cry of the age is, that God is merciful, that God is love. Ay; who said he was not? But remember, it is equally true, God is just, severely and inflexibly just. He were not God, if he were not just; he could not be merciful if he were not just, for punishment of the wicked is demanded by the highest mercy to the rest of mankind. Rest assured, however, that he is just, and that the words I am about to read you from God's Word are true—'The wicked shall be turned into hell, and all the nations that forget God;' 'God is angry with the wicked every day;'" from Spurgeon's sermon Turn or Burn
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
The Forgotten Spurgeon, by Iain Murray