The Big Idea
“Those things which proceed out of the mouth come from the heart… These are the things which defile a man.”
Matthew 15:18-20
Chambers confronts the self-deception of assumed innocence—the comfortable belief that because we have not acted on certain impulses we are free of them. Jesus’ diagnosis goes all the way to the heart, and only the Holy Spirit’s presence provides true protection against what we find there.
The Simple Takeaway
Two Christians are both reflecting honestly on what Jesus says about the contents of the human heart.
Person A resists the diagnosis—they have not done the terrible things Jesus lists, and they interpret their behavioral restraint as evidence of genuine inner purity, not recognizing that civilization and cowardice can produce the same behavioral outcome as actual holiness.
Person B has been honest enough to recognize that their outward restraint has sometimes been rooted in fear of exposure or social cost rather than genuine purity—and has brought that recognition to Christ, finding that honest surrender is the beginning of real protection.
Chambers calls readers to stop sheltering behind behavioral innocence and instead to bring the actual contents of their hearts to Jesus, finding in His redemption the only genuine protection against what lies within.
One Question to Sit With
Is there a thought pattern or inner attitude that your outward behavior conceals—something you haven’t acted on but that you know is present—that you have not yet honestly brought to Christ?
Commentary
“Initially we trust in our ignorance, calling it innocence, and next we trust our innocence, calling it purity.”
There is a progression from false ignorance to false innocence to false purity
Chambers traces a three-stage process of self-deception: first we are genuinely ignorant of what is within us and call that ignorance innocence. Then, having become slightly aware, we trust in having not acted on what we see and call that non-action purity. Neither is what it appears to be.
“Either Jesus Christ is the supreme authority on the human heart, or He is not worth paying any attention to.”
Accept Jesus’ diagnosis or reject His authority entirely
Chambers forces a binary: Jesus’ statements about the human heart either deserve to be taken with absolute seriousness, or the whole enterprise of following Him is not worth the effort. There is no comfortable middle ground where Jesus is generally admirable but His specific diagnoses about the heart can be politely set aside.
“Am I prepared to trust the penetration of His Word into my heart, or would I prefer to trust my own ‘innocent ignorance’?”
The choice is between Christ’s x-ray and our own self-assessment
Chambers frames the whole devotional around this personal decision: whose diagnosis of my inner life do I trust? My own comfortable self-assessment that finds mostly good intentions and defensible motivations? Or the penetrating word of the One who says what actually proceeds from the heart?
“If I will take an honest look at myself… I am very likely to have a rude awakening that what Jesus Christ said is true, and I will be appalled at the possibilities of the evil and the wrong within me.”
Honest self-examination confirms Jesus’ diagnosis
The evidence is available to anyone willing to look carefully enough and honestly enough. Chambers says the appalling quality of what we find when we look is itself the confirmation that Jesus is right. The shock of self-knowledge is not a reason to look away but a reason to turn toward the One who offers genuine cleansing.
“As long as I remain under the false security of my own ‘innocence,’ I am living in a fool’s paradise.”
Assumed innocence is dangerous self-deception
The comfort of believing oneself innocent is not neutral—it is dangerous. It prevents the honest encounter with Christ that would produce genuine transformation. The ‘fool’s paradise’ is a place where no real work is done because the need for it has not been acknowledged.
“If I have never been an openly rude and abusive person, the only reason is my own cowardice coupled with the sense of protection I receive from living a civilized life.”
Social restraint is not the same as inner purity
This is perhaps Chambers’ most confronting claim in this devotional: much of what we interpret as moral goodness is actually social conditioning and cowardice. The civilized life provides external constraints that produce behavioral outputs similar to those of genuine holiness—without the inner transformation that makes the similarity real.
“The only thing that truly provides protection is the redemption of Jesus Christ.”
Real protection from the heart’s contents comes only through redemption
Having established what the heart contains, Chambers points to the only genuine solution. Not more discipline, not better social conditioning, not psychological techniques—but the redemption of Jesus Christ, which does not merely suppress what the heart contains but transforms the source from which the heart flows.
“When the Holy Spirit comes into me, He brings into the center of my personal life the very Spirit that was exhibited in the life of Jesus Christ—the Holy Spirit, which is absolute unblemished purity.”
The Spirit brings Christ’s own purity into our center
Chambers ends with the positive provision: the Holy Spirit does not just warn us about the heart’s contents—He brings His own purity to live at the center of our personal life. This is not our purity improved but His purity given—the absolute unblemished purity that characterized the life of Jesus, now inhabiting ours.