'Heart' in the Bible

“Yet You concealed these thoughts in Your heart;I know that this was Your hidden plan:

As for you, if you redirect your heartand lift up your hands to Him in prayer—

Why has your heart misled you,and why do your eyes flash

My days have slipped by;my plans have been ruined,even the things dear to my heart.

I will see Him myself;my eyes will look at Him, and not as a stranger.My heart longs within me.

Receive instruction from His mouth,and place His sayings in your heart.

God has made my heart faint;the Almighty has terrified me.

The dying man blessed me,and I made the widow’s heart rejoice.

If my step has turned from the way,my heart has followed my eyes,or impurity has stained my hands,

If my heart has been seduced by my neighbor’s wifeor I have lurked at his door,

so that my heart was secretly enticedand I threw them a kiss,

Have I covered my transgressions as others doby hiding my guilt in my heart,

My heart is like unvented wine;it is about to burst like new wineskins.

My words come from my upright heart,and my lips speak with sincerity what they know.

Those who have a godless heart harbor anger;even when God binds them, they do not cry for help.

My heart pounds at thisand leaps from my chest.

Therefore, men fear Him.He does not look favorably on any who are wise in heart.

Who put wisdom in the heartor gave the mind understanding?

His heart is as hard as a rock,as hard as a lower millstone!