Psalm 51:6 NKJV
Behold, You desire truth in the inward parts,
And in the hidden part You will make me to know wisdom.
The View from the Inside
MY NOTES
“Behold, You desire truth in the inward parts, And in the hidden part You will make me to know wisdom.” > — Psalm 51:6 (NKJV)
In a world obsessed with filters and “curated” lives, Psalm 51:6 is like a bucket of cold water to the face.
David has just spent the previous verses admitting that his sin isn’t just a behavior issue; it’s a soul issue (v. 5). Now, he looks at the standard God requires. He realizes that God isn’t looking for a “rebranding” or a better public relations strategy. God isn’t impressed by a religious mask or a polite “I’m doing fine” during Sunday morning small talk.
The “Inward” Standard: The “inward parts” and the “hidden part” refer to the root of your motives, your intellect, and your private thoughts—the places no one else sees. David uses the word “Behold” to signal a massive discovery: God wants reality, not religion. He desires “truth”—integrity, sincerity, and heart-fidelity—right in the center of our being.
As Spurgeon pointed out, it’s a scary thought. If God wants truth in the inmost parts, then even our “holy desires” must be tested. Do we actually want to be holy, or do we just want to be seen as holy? David realized his deep, native depravity was in direct conflict with God’s nature. This realization was his “spiritual biopsy” coming back positive.
Deep Problems, Deep Solutions: The beauty of this verse is the shift from David’s failure to God’s power. David says, “You will make me to know wisdom.” He recognizes that he can’t pull “truth” out of a heart that is “shaped in iniquity.” If truth is going to exist in the hidden part of a sinner, God has to be the one to put it there.
This isn’t just about knowing facts; it’s about “heavenly, saving wisdom.” It’s the kind of wisdom that recognizes the tempter’s trap before the foot hits the snare. When we are honest about our mess (truth), God meets us with His instruction (wisdom).
The Encouragement of the Demand: It sounds impossible that God demands inward purity, but it’s actually an invitation. It means God is willing to work at the deepest level of your life. He doesn’t just want to fix your habits; He wants to transform your “hidden man.” He wants to write His law on your heart so that your outside matches your inside.
Key Takeaways
- Authenticity is Required: God is never satisfied with outward virtue if the heart is still polluted. He values sincerity over “correct” performance.
- The Inside-Out Approach: Spiritual transformation doesn’t start with changing your social circle or your habits; it starts in the “hidden part” where God works wisdom.
- God is the Teacher: We cannot manufacture spiritual wisdom. We must be “made to know” it by the Holy Spirit.
- Truth Precedes Wisdom: Wisdom only takes root in a heart that is honest. If you won’t be truthful about your sin, you won’t be wise about your walk.
Cross References (NKJV)
1 Samuel 16:7 > “But the Lord said to Samuel, “Do not look at his appearance or at his physical stature, because I have refused him. For the Lord does not see as man sees; for man looks at the outward appearance, but the Lord looks at the heart.””
Psalm 32:2 > “Blessed is the man to whom the Lord does not impute iniquity, And in whose spirit there is no deceit.”
1 Peter 3:4 > “rather let it be the hidden person of the heart, with the incorruptible ornament of a gentle and quiet spirit, which is very precious in the sight of God.”
Jeremiah 31:33 > “But this is the covenant that I will make with the house of Israel after those days, says the Lord: I will put My law in their minds, and write it on their hearts; and I will be their God, and they shall be My people.”
A Closing Prayer
Abba, I confess that I spend a lot of energy trying to look good on the outside while my “inward parts” are messy and confused. Thank You for being a God who sees me exactly as I am and loves me enough to demand truth. I invite You into the “hidden part” of my soul today. Teach me Your wisdom. Don’t let me settle for an outward change; work a deep transformation in my motives and my desires. Let there be no guile in my spirit. I ask for this in Jesus’ name, Amen.
Things to Think About:
- The “Filter” Check: Where in your life are you currently “performing” for people while hiding a struggle from God? What would it look like to bring “truth” to that inward part today?
- Hidden Wisdom: Think of a recent mistake. What “wisdom” was missing in your “hidden part” that might have prevented it?
- The Motive Audit: Why do you do the “good things” you do (ministry, work, kindness)? Is there truth in those motives, or is there a bit of “theater” involved?
- Learning to Profit: David believed God would “make him to know wisdom.” In what area of your life do you feel most “foolish” right now? Write out a request for God to instruct your innermost nature in that area.
Proverb for Today
Do not let your heart envy sinners, But be zealous for the fear of the Lord all the day; For surely there is a hereafter, And your hope will not be cut off. Proverbs 23:17-18 NKJV
Daily Scripture
Then Jacob made a vow, saying, “If God will be with me, and keep me in this way that I am going, and give me bread to eat and clothing to put on, so that I come back to my father’s house in peace, then the Lord shall be my God. And this stone which I have set as a pillar shall be God’s house, and of all that You give me I will surely give a tenth to You.” Genesis 28:20-22 NKJV
Bill
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Summary of Commentaries:
God isn’t looking for a religious rebrand; He demands radical sincerity. The commentaries stress that while our nature is “misshapen,” God performs a deep spiritual biopsy, replacing outward performance with “hidden wisdom.” This isn’t mere head knowledge—it’s a heart-level transformation only the Holy Spirit can provide. By acknowledging our inner mess, we invite God to work at the deepest level, trading our superficial masks for the authentic purity His holy nature requires.
Commentaries:
Charles Spurgeon
“Behold.” Here is the great matter for consideration. God desires not merely outward virtue, but inward purity, and the penitent’s sense of sin is greatly deepened as with astonishment he discovers this truth, and how far he is from satisfying the divine demand. The second “Behold” is fitly set over against the first; how great the gulf which yawns between them!
“Thou desirest truth in the inward parts.” Reality, sincerity, true holiness, heart fidelity, these are the demands of God. He cares not for the pretense of purity, he looks to the mind, heart, and soul. Always has the Holy One of Israel estimated men by their inner nature, and not by their outward professions; to him the inward is as visible as the outward, and he rightly judges that the essential character of an action lies in the motive of him who works it.
“And in the hidden parts thou shalt make me to know wisdom.” The penitent feels that God is teaching him truth concerning his nature, which he had not before perceived. The love of the heart, the mystery of its fall, and the way of its purification—this hidden wisdom we must all attain; and it is a great blessing to be able to believe that the Lord will “make us to know it.” No one can teach our innermost nature but the Lord, but he can instruct us to profit. The Holy Spirit can write the law on our heart, and that is the sum of practical wisdom. He can put the fear of the Lord within, and that is the beginning of wisdom. He can reveal Christ in us, and he is essential wisdom. Such poor, foolish, disarranged souls as ours, shall yet be ordered aright, and truth and wisdom shall reign within us.
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Enduring Word
You desire truth in the inward parts: Though the sin nature was deep within David, God wanted to work deeply in him. God wanted a transformation in David all the way to the inward parts, to the hidden part that would know wisdom. David did not cry out for a superficial reform, but something much deeper. (Guzik)
i. “Oh! Delude not yourselves with the thought that you have holy desires unless you truly have them. Do not think your desires are true towards God unless they are really so: he desireth truth in our desires.” (Spurgeon)
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Albert Barnes
Behold, thou desirest truth in the inward parts – The word rendered “desirest,” means to have pleasure in; to delight in; and the idea is that this only is agreeable to God, or this only accords with his own nature. The word rendered “inward parts,” means properly the reins, and is usually employed to denote the seat of the mind, the feelings, the intellect. Compare Job 38:36. The allusion is to the “soul;” and the idea is, that God could be satisfied with nothing “but” purity in the soul. The “connection” is this: David was deeply conscious of his own pollution; his deep, early, native depravity. This, in his own mind, he contrasted strongly with the nature of God, and with what God must require, and be pleased with. He “felt” that God could not approve of or love such a heart as his, so vile, so polluted, so corrupt; and he felt that it was necessary that he should have a pure heart in order to meet with the favor of a God so holy. But how was that to be obtained? His mind at once adverted to the fact that it could come only from God; and hence, the psalm now turns from confession to prayer. The psalmist pleads earnestly Psalms 51:7-10 that God “would” thus cleanse and purify his soul.
And in the hidden part – In the secret part; the heart; the depths of the soul. The cleansing was to begin in that which was hidden from the eye of man; in the soul itself. Wisdom, heavenly, saving wisdom, was to have its seat there; the cleansing needed was not any mere outward purification, it was the purification of the soul itself.
Thou shalt make me to know wisdom – Thou only canst enable me to understand what is truly wise. This wisdom, this cleansing, this knowledge of the way in which a guilty man can be restored to favor, can be imparted only by thee; and “thou wilt do it.” There is here, therefore, at the same time a recognition of the truth that this “must” come from God, and an act of faith, or a strong assurance that he “would” impart this.
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John Gill
Behold, thou desirest truth in the inward parts,…. With delight and pleasure, as the word signifies: meaning either Christ, the truth and the life, formed and dwelling in the hearts of his people; or the Gospel, the word of truth, which has a place there; and particularly that branch of it which proclaims pardon to sensible sinners, and is the ground of hope within them: or else a true and hearty confession of sin, which David now made; or rather internal holiness and purity of heart, in opposition to the corruption of nature before acknowledged: this is what is agreeable to the nature of God, is required by his holy law, and is wrought in the hearts of his people in regeneration; and this is “truth,” real, and not imaginary, genuine and unfeigned; where it is there is a true sense of sin, a right sight of Christ, unfeigned faith in him, sincere love to him, hope in him without hypocrisy, and a reverential fear of God upon the heart; the inward parts are the seat of all this, and in the exercise of it the Lord takes great delight and pleasure
and in the hidden [part] thou shall make me to know wisdom; either Christ, the wisdom of God; or the Gospel, and particularly that part of it which concerns the pardon of sin; or a true knowledge of sin, and of the way of life and salvation by Christ, which is the truest and highest wisdom: and the phrase “hidden” or “secret” may either denote the nature of the wisdom made known, which is hidden wisdom, the wisdom of God in a mystery; or the manner in which it is made known; it is in a hidden way, privately, and secretly, and indiscernibly like the wind, by the Spirit and grace of God; or the seat and subject of it, “the hidden part,” as we supply it; the hidden man of the heart. David begins to rise in the exercise of his faith in the grace of God, “thou shall make me to know,” unless the words should be rendered as a prayer, as they are by some, “make me to know”, and as are the following.
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Matthew Henry
David’s acknowledgment of the grace of God (v. 6), both his good-will towards us (“thou desirest truth in the inward parts, thou wouldst have us all honest and sincere, and true to our profession”) and his good work in us-“In the hidden part thou hast made,” or shalt make, “me to know wisdom.” Note,
1. Truth and wisdom will go very far towards making a man a good man. A clear head and a sound heart (prudence and sincerity) bespeak the man of God perfect.
2. What God requires of us he himself works in us, and he works it in the regular way, enlightening the mind, and so gaining the will. But how does this come in here?
(1.) God is hereby justified and cleared: “Lord, thou was not the author of my sin; there is no blame to be laid upon thee; but I alone must bear it; for thou has many a time admonished me to be sincere, and hast made me to know that which, if I had duly considered it, would have prevented my falling into this sin; had I improved the grace thou hast given me, I should have kept my integrity.”
(2.) The sin is hereby aggravated: “Lord, thou desirest truth; but where was it when I dissembled with Uriah? Thou hast made me to know wisdom; but I have not lived up to what I have known.”
(3.) He is hereby encouraged, in his repentance, to hope that God would graciously accept him; for,
[1.] God had made him sincere in his resolutions never to return to folly again: Thou desirest truth in the inward part; this is that which God has an eye to in a returning sinner, that in his spirit there be no guile, Ps. 32:2. David was conscious to himself of the uprightness of his heart towards God in his repentance, and therefore doubted not but God would accept him.
[2.] He hoped that God would enable him to make good his resolutions, that in the hidden part, in the new man, which is called the hidden man of the heart (1 Pt. 3:4), he would make him to know wisdom, so as to discern and avoid the designs of the tempter another time. Some read it as a prayer: “Lord, in this instance, I have done foolishly; for the future make me to know wisdom.” Where there is truth God will give wisdom; those that sincerely endeavor to do their duty shall be taught their duty.
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Miscellaneous Comments
“Thou desirest truth in the inward parts.” Thou lovest truth, not shadows or images, but realities; thou lovest truth in the inward parts, inside truth, a true heart, a pure conscience: he is a Christian who is one inwardly. Rom 2:29.
—John Bull.
“In the hidden part thou shalt make me to know wisdom.” It is one thing to be wise headed and wise tongued, and another to be wise hearted, and therefore in Scripture nothing more ordinary than to set forth wisdom that is true indeed by the heart. God himself is said to be wise of heart. Foolish creatures are like Ephraim, “a silly dove without heart.” They may have head enough, notion enough, flashing light, appearing to others enough, but they are without a heart; they have not the great work there, a new head and an old heart, a full head and an empty heart, a light and burning profession, and a dark, dead, and cold heart; he that takes up in such a condition is a fool and an errant fool.
—John Murcot, 1657.
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