Common misunderstanding
Some use this to say a believer can never trust any inward conviction or Spirit-led desire.
Read the context
Jeremiah contrasts trusting man with trusting the Lord. The natural human heart is deeply unreliable apart from God.
Guided thinking questions
Is Jeremiah describing fallen humanity or Spirit-renewed life? What does Ezekiel promise about a new heart? How does the Spirit change the believer?
Key-word study
Heart refers to the inner person: desires, will, thoughts, and motives.
Cultural context
Hebrew thought viewed the heart as the control center of life, not merely emotions.
Cross-Scripture balance
promises a new heart. Romans 8 describes believers indwelt by the Spirit.
Where this issue appears
Used either to excuse sin or to deny God's renewing work in believers.
Correct interpretation
The natural heart is deceitful, but God gives believers a new heart and His Spirit.
Faithful application
Do not trust sinful impulses. Test your desires by Scripture and the Spirit's fruit.