What does it mean to have a clean heart according to the Bible?

In Psalm 73, the psalmist refers to 'those of a clean heart' as the recipients of God's goodness. This concept indicates a heart that has been transformed by God's grace, acknowledging sinfulness yet covered by faith in Christ. A clean heart does not imply moral perfection but signifies a new nature bestowed upon believers, enabling them to recognize their sinfulness and seek God's forgiveness. As David famously prayed, 'Create in me a clean heart, O God,' the clean heart symbolizes a deep reliance on God's saving mercy and the ongoing transformation through the Holy Spirit, which is vital for authentic faith and fellowship with God.