'Heart' in the Bible

“God is wise in heart and mighty in strength;Who has [ever] defied or challenged Him and remained unharmed?

‘Yet these [present evils] You have hidden in Your heart [since my creation]:I know that this was within You [in Your purpose and thought].

“If you direct your heart [on the right path]And stretch out your hands to Him,

“Oh, that You would hide me in Sheol (the nether world, the place of the dead),That You would conceal me until Your wrath is past,That You would set a definite time and then remember me [and in Your lovingkindness imprint me on your heart]!

“Why does your heart carry you away [allowing you to be controlled by emotion]?And why do your eyes flash [in anger or contempt],

“My days are past, my purposes and plans are frustrated and torn apart;The wishes of my heart [are broken].

Whom I, even I, will see for myself,And my eyes will see Him and not another!My heart faints within me.

“Please receive the law and instruction from His mouthAnd establish His words in your heart and keep them.

“For God has made my heart faint,And the Almighty has terrified me,

“I hold fast my uprightness and my right standing with God and I will not let them go;My heart does not reproach me for any of my days.

“The blessing of him who was about to perish came upon me,And I made the widow’s heart sing for joy.

“Did I not weep for one whose life was hard and filled with trouble?Was not my heart grieved for the needy?

“I am seething within and my heart is troubled and cannot rest;Days of affliction come to meet me.

“If my step has turned away from the way [of God],Or if my heart has [covetously] followed my eyes,Or if any spot [of guilt] has stained my hands,

“If my heart has been enticed and I was made a fool by a woman,Or if I have [covetously] lurked at my neighbor’s door [until his departure],

And my heart became secretly enticed [by them],And my hand threw a kiss from my mouth [in respect to them],

“My words will express the uprightness of my heart,And my lips will speak what they know with utter sincerity.

“If God should determine to do so,If He should gather to Himself [that is, withdraw from man] His [life-giving] spirit and His breath,

“Behold, God is mighty, and yet does not despise anyone [nor regard any as trivial];He is mighty in the strength and power of understanding.

“But the godless in heart store up anger [at the divine discipline];They do not cry [to Him] for help when He binds them [with cords of affliction].

“Indeed, at His thundering my heart tremblesAnd leaps out of its place.

“Men therefore fear Him;He does not regard nor respect any who are wise in heart [in their own understanding and conceit].”

“His heart is as hard as a stone,Indeed, as solid as a lower millstone.