Jeremiah 17:9 Meaning and Explanation
“The heart is deceitful above all things, and desperately wicked: who can know it?”
King James Version (KJV)
Read this verse in context with translation switching:
Read Full Chapter →Jeremiah names a hard truth: our own hearts can fool us, and we cannot fully see ourselves.
The Context of Jeremiah 17:9
Jeremiah has just contrasted the man who trusts in himself with the man who trusts in God (verses 5 to 8). Now he explains why self-trust is so dangerous. The very heart we would lean on is the one thing we cannot fully read.
What Does Jeremiah 17:9 Mean?
This is one of the most honest sentences in the Bible. In Hebrew thought the heart is not mainly feelings; it is the inner self, the place where we think, choose, and decide. Jeremiah says that this inner self is 'deceitful,' twisted in ways that can mislead even the person it belongs to, and then he asks the question we all eventually face: 'who can know it?' We can deceive others, but the harder truth is that we can deceive ourselves, calling wrong things right and not even noticing. No one can fully map their own heart.
Jeremiah leaves the question open, and the next verse answers it: 'I the LORD search the heart' (verse 10). The One we cannot fully see is fully seen by God, and that is mercy, because He came in Jesus to heal the very thing we cannot fix in ourselves. Christ knew what was in people (John 2:25), yet drew near to them anyway. The God who sees our hearts completely is the God who loves us still, and offers each of us a new and clean heart.
Jeremiah 17:9 in the Original Language
leb (לֵב), 'heart' -- the inner self: not feelings alone, but the seat of thought, will, and decision.
How to Apply Jeremiah 17:9 Today
This verse invites a humble honesty about ourselves. Because our own hearts can mislead us, we cannot afford to simply trust our every instinct. The good news is that the One who sees us completely loves us anyway, and stands ready to give us a clean heart we could never make on our own.
Frequently Asked Questions About Jeremiah 17:9
What does Jeremiah 17:9 mean?
Jeremiah names a hard truth: our own hearts can fool us, and we cannot fully see ourselves.
What is the context of Jeremiah 17:9?
Jeremiah has just contrasted the man who trusts in himself with the man who trusts in God (verses 5 to 8). Now he explains why self-trust is so dangerous. The very heart we would lean on is the one thing we cannot fully read.
How can I apply Jeremiah 17:9 today?
This verse invites a humble honesty about ourselves. Because our own hearts can mislead us, we cannot afford to simply trust our every instinct. The good news is that the One who sees us completely loves us anyway, and stands ready to give us a clean heart we could never make on our own.