No doctrine is so calculated to preserve a man from sin as the doctrine of the grace of God. Those who have called it a licentious doctrine did not know anything at all about it. If they knew the grace of God in truth, they would soon see that there was no preservative from lying like knowledge that we are the elect of God from the foundation of the world. There is nothing like a belief in my eternal perseverance, and the immutability of my Father's affection, which can keep me near to Him from a motive of simple gratitude… Of all men, those have the most disinterested piety, the sublimest reverence, the most ardent devotion, who believe that they are saved by grace, without works, through faith, and that not of themselves, it is the gift of God.

Charles Spurgeon