'Heart' in the Bible

“See, O Lord, how distressed I am!My spirit is deeply disturbed;My heart is overturned within me and cannot rest,For I have been very rebellious.In the street the sword kills and bereaves;In the house there is [famine, disease and] death!

“Let all their wickedness come before You;And deal with them as You have dealt with meBecause of all my transgressions;For my groans are many and my heart is faint.”

My eyes fail because of tears [mourns Jeremiah],My spirit is deeply disturbed;My heart is poured out on the earth [in grief]Because of the destruction of the daughter of my people [Jerusalem],When little ones and infants faintIn the streets of the city.

“Arise, cry aloud in the night,At the beginning of the night watches;Pour out your heart like waterBefore the presence of the Lord;Lift up your hands to HimFor the life of your little onesWho are faint from hungerAt the head of every street.”

He has caused the arrows of His quiverTo enter my inner parts.

For He does not afflict willingly and from His heartOr grieve the children of men.

You will harden their hearts;Your curse will be upon them.