All of Grace: An earnest word with those seeking salvation by C. H. Spurgeon and published by Christian Focus Publications.
Here is the foundation of Spurgeon's ministry, his desire to see people come to trust Jesus so that they can enjoy eternity with God in heaven. It is a personal, passionate plea for you to consider where you are spiritually. Spurgeon points to how Jesus can provide security against your moral failings in front of a holy God, whom one day you will meet.