This light, and this only, has its fruit in an universal holiness of life

Thirdly, All may hence be exhorted, earnestly to seek this spiritual light. To influence and move to it, the following things may be considered.

4. This light, and this only, has its fruit in an universal holiness of life. No merely notional or speculative understanding of the doctrines of religion will ever bring to this. But this light, as it reaches the bottom of the heart, and changes the nature, so it will effectually dispose to an universal obedience. It shows God as worthy to be obeyed and served. It draws forth the heart in a sincere love to God, which is the only principle of a true, gracious, and universal obedience; and it convinces of the reality of those glorious rewards that God has promised to them that obey him.

Jonathan Edwards- A Divine And Supernatural Light Immediately Imparted To The Soul, By The Spirit Of God, Shown To Be Both A Scriptual And Rational Doctrine. [Preached at Norhampton, and published at the desire of some of the hearers, in the year 1734.]