The heart that lies to itself
Self-deception
Jeremiah names a danger closer to home than any external enemy: the heart is deceitful above all things, and desperately sick; who can understand it? The most effective deceiver we face is not out there but in here — our own heart, expert at telling us exactly what we want to hear and hiding from us what we would rather not see.
This is the enemy's most economical strategy: he does not even have to do the lying himself, because we will do it for him. We rationalize. We rename our sins as something more flattering — call greed prudence, call cowardice tact, call gossip concern, call self-indulgence self-care. We construct elaborate justifications and believe them sincerely, all while the heart quietly serves its own desires under a veil of good reasons.
The terrifying thing is how invisible this is from the inside. A deceived heart does not feel deceived; it feels perfectly reasonable. This is why we cannot finally trust our own self-assessment, and must invite a light from outside ourselves. Who can discern his own errors, the psalmist prays; cleanse me from my hidden faults. We need God, and often a trusted other, to show us the lies we are telling ourselves, because the heart that lies will never volunteer the truth.
“The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?”
— The prophet Jeremiah — Jeremiah 17:9 (WEB)
Distrust the deceiver within — your own flattering heart — and invite God's word and a trusted friend to show you the lies you cannot see in yourself.
“Who can discern his errors? Forgive me from hidden errors.”
We suspect deception from outside but not the most accomplished liar of all, our own heart, which renames our sins as virtues and believes it sincerely. The interior work is to accept that self-deception is invisible from the inside — the deceived heart feels perfectly reasonable — and so to refuse to trust our own self-assessment alone, inviting God's searching word and honest others to expose what the heart conceals.
This week, name one place you may be rationalizing — calling a sin by a flattering name — and test it: ask God to cleanse your hidden faults, and ask a trusted friend whether they see something in you that you cannot see in yourself.
The tempter rarely bothers to deceive a heart so eager to deceive itself; he need only stand back while it renames its sins as virtues and believes the flattering story without a flicker of doubt. Self-deception feels perfectly reasonable from the inside, which is why the soul that distrusts its own verdict — inviting God's searching word and a friend's honest eyes — cannot be sold the lie it can no longer tell itself unchallenged.
We are quick to suspect deception from outside — the lies of the enemy, the manipulations of others — and slow to suspect the deceiver within. Yet Jeremiah says the heart is deceitful above all things, the most accomplished liar we will ever face. The enemy hardly needs to deceive us when we are so willing to deceive ourselves, renaming our sins as virtues and believing it sincerely.
The deepest danger of self-deception is that it is invisible from the inside; the deceived heart feels entirely reasonable. This is why we cannot rely on our own sense that we are fine, and must invite light from outside — God's searching word and the honest eyes of a trusted friend — to show us what the heart conceals. Where might you be sincerely believing a flattering story about yourself that is not actually true — and who could you trust to show you?
- Where might I be sincerely believing a flattering story about myself?
- What sin have I renamed as a virtue — greed as prudence, gossip as concern?
- Who could I trust to show me what my own heart conceals?
Lord, my own heart is the most skilled deceiver I face, renaming my sins and believing it. I cannot discern my own errors. Cleanse me from my hidden faults, search me by your word, and send me honest friends to show me the lies I tell myself. Amen.