'Hearts' in the Bible

For they have made their hearts ready like an oven, while they are waiting secretly; their wrath is sleeping all night; in the morning it is burning like a flaming fire.

And they have not made prayer to me in their hearts, but they make loud cries on their beds; they are cutting themselves for food and wine, they are turned against me.

When I gave them food they were full, and their hearts were full of pride, and they did not keep me in mind.

I will come face to face with them like a bear whose young ones have been taken from her, and their inmost hearts will be broken; there the dogs will make a meal of them; they will be wounded by the beasts of the field.