What Is Divine Light? Jonathan Edwards on How God Opens the Heart to Truth
What is the difference between knowing Christian doctrine and truly seeing its glory?
Jonathan Edwards addresses that question in “A Divine and Supernatural Light,” a sermon on Matthew 16:17, where Jesus says to Peter: “Blessed art thou, Simon Bar-jona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.”
Peter confessed that Jesus is “the Christ, the Son of the living God.” According to Edwards, Jesus’s response shows that Peter’s knowledge was not merely the product of human reasoning, education, or religious environment. It was revealed by God.
Edwards states the doctrine plainly: “There is such a thing as a spiritual and Divine Light immediately imparted to the Soul by God, of a different nature from any that is obtained by natural means.”
That sentence captures one of Edwards’s great concerns: true Christianity is not less than doctrine, reason, or biblical truth — but it is more than bare information. Saving knowledge includes a God-given sense of the beauty, excellence, and reality of divine things.
Peter’s Confession Was a Gift From the Father
The sermon begins with the scene in Matthew 16. Jesus asks His disciples who people say He is. They report the confused public opinions: some say John the Baptist, others Elijah, Jeremiah, or one of the prophets. Then Jesus asks, “But who do you say that I am?”
Peter answers: “Thou art Christ, the Son of the living God.”
Edwards notes that Peter is pronounced blessed because he knew the truth about Christ while many others remained confused. But Peter’s blessedness was not rooted in superior intelligence or social advantage. In fact, Edwards contrasts Peter and the other disciples — poor, ordinary, relatively uneducated fishermen — with the scribes and Pharisees, who had far greater religious education and status.
The explanation is grace. God had revealed Christ to Peter.
This sets up Edwards’s central point: spiritual knowledge of Christ is not finally produced by “flesh and blood.” It is given by the Father.
Divine Light Is Not the Same as Natural Conviction
Edwards is careful to explain what divine and supernatural light is not.
First, it is not the same as natural conviction of sin. A person may feel guilt, fear divine judgment, or become deeply aware of misery. Such conviction may be serious and even assisted by the Spirit in a common way. But Edwards distinguishes this from the renewing and sanctifying work of the Holy Spirit.
In his framework, common grace may awaken natural conscience. Saving grace does more. It restores what was lost in the fall and brings a new principle of spiritual life into the soul.
This distinction matters because Edwards does not want hearers to confuse fear, distress, or religious seriousness with true spiritual sight. A troubled conscience may be real, but it is not identical with saving illumination.
Divine Light Is Not Imagination or a Religious Experience
Second, Edwards says divine light is not an impression on the imagination. It is not seeing outward brightness, having a vivid mental picture, hearing inward sounds, or experiencing visible glory in the mind.
He acknowledges that spiritual discoveries may affect the imagination. A person deeply moved by divine truth may also have vivid thoughts or images. But the images themselves are not spiritual light.
That warning is still timely. Many people equate spirituality with intensity, unusual impressions, or emotionally charged experiences. Edwards redirects attention away from the spectacular and toward the substance: the true sight of God’s excellence in what He has revealed.
Divine Light Does Not Add New Revelation
Third, divine light does not mean receiving new doctrines outside Scripture.
Edwards explicitly says this spiritual light “reveals no new doctrine” and “suggests no new proposition to the mind.” It is not the inspiration given to prophets and apostles, nor is it private revelation that adds to the Bible.
Instead, divine light gives a right apprehension of what Scripture already teaches.
That is an important safeguard. Edwards’s view is deeply experiential, but it is not untethered from the Word of God. Spiritual illumination does not bypass Scripture. It opens the soul to see the glory of what God has already revealed there.
Divine Light Is More Than Being Emotionally Moved
Fourth, Edwards distinguishes divine light from every affecting view of religion.
People can be moved by religious stories, sermons, music, tragedy, beauty, or eloquence without truly seeing the glory of God. A person may be stirred by the sufferings of Christ the way they might be stirred by any tragic story. They may be emotionally affected by descriptions of heaven without possessing spiritual light.
This is not a rejection of emotion. Edwards is one of the great theologians of religious affections. But he insists that affection alone is not proof of saving illumination.
The question is not merely, “Was I moved?” The deeper question is, “Have I been given a true sense of the divine excellence of God in Christ?”
What Divine Light Positively Is
After clearing away misunderstandings, Edwards defines divine light positively: “a true sense of the Divine Excellency of the things revealed in the word of God, and a conviction of the truth and reality of them then arising.”
That definition has two parts.
First, divine light is a true sense of the excellence of God, Christ, redemption, and the gospel. The spiritually enlightened person does not merely believe that God is glorious. He has, Edwards says, a sense of God’s glory in the heart. He does not merely judge that holiness is good. He sees the loveliness of God’s holiness.
Second, from this sight of divine excellence arises a conviction of the truth of divine things. The soul sees something so Godlike, so transcendent, and so beautiful in the gospel that it recognizes its divine reality.
Head Knowledge and Heart Knowledge
One of the most accessible parts of the sermon is Edwards’s distinction between speculative knowledge and the sense of the heart.
He gives examples:
A person may know that honey is sweet by report, but tasting honey is different.
A person may believe another is beautiful by hearsay, but seeing the face is different.
A person may judge that God is holy and gracious, but sensing the loveliness of His holiness and grace is something more.
Edwards is not anti-intellectual. He does not dismiss doctrine, reason, or careful thought. But he insists that saving knowledge is not merely an opinion held in the mind. It includes the heart’s perception of the beauty and sweetness of divine truth.
This helps explain why someone can know many Christian facts and yet remain spiritually unchanged. The issue is not a lack of data only. The issue is the need for God to open the eyes of the heart.
Divine Light Strengthens Reason Instead of Replacing It
Edwards also shows that spiritual illumination does not destroy reason. It sanctifies and assists it.
When the heart is prejudiced against divine truth, arguments may lose their force. But when a person sees the excellence of Christ and His doctrine, those prejudices are removed. The mind becomes more receptive to the proper force of truth.
Edwards says divine light also helps reason positively. The beauty of divine things draws the mind to dwell on them with delight. The soul’s faculties become more awakened and enlivened. Reason can see more clearly, much like objects on the earth are more easily discerned when the sun shines on them rather than when they are viewed in dim starlight.
This is a helpful corrective. Biblical Christianity does not ask people to choose between reason and spiritual life. God-given spiritual sight makes the mind more fit to receive and contemplate truth.
Why This Sermon Matters Today
Edwards’s sermon speaks directly to several modern confusions.
Some reduce Christianity to information transfer: learn the right facts, adopt the right positions, and you are spiritually sound. Others reduce Christianity to religious intensity: have a powerful experience, feel deeply moved, and assume that is spiritual life. Still others equate spirituality with private impressions or supposed new messages from God.
Edwards refuses all of those reductions.
True spiritual knowledge is grounded in Scripture, centered on Christ, given by God, and experienced as a real sense of divine beauty and excellence in the heart.
That makes this sermon especially useful for pastors, teachers, students, and thoughtful Christians who want to understand the difference between outward religion and inward illumination.
Watch the Full Sermon
This article summarizes part one of Jonathan Edwards’s “A Divine and Supernatural Light.” Watch the full Sermon Academy video here: https://www.youtube.com/watch?v=Zkr8joSShG4
Then visit the source video page on Sermon Academy: https://www.sermonacademy.com/videos/v/a-divine-and-supernatural-light-part-1-jonathan-edwards
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