'Heart' in the Bible

This [is] the city of rejoicing that lived securely; the one saying in her heart, "{I am, and there is none besides me}." How she has become a desolation, a lair for wild animals! Everyone who passes by her hisses and shakes his fist.

Shout for joy, O daughter of Zion! Cry aloud, O Israel! Rejoice and be jubilant with all your heart, O daughter of Jerusalem!