From The Vain Self Flatteries of the Sinner, by Jonathan Edwards
If you think yourselves already converted, and that encourages you to give yourselves the greater liberty in sinning, this is a certain sign that you are not converted.
Wherefore abandon all these ways of flattering yourselves; no longer follow the devil’s bait; and let nothing encourage you to go on in sin; but immediately and henceforth seek God with all your heart, and soul, and strength.