'Hearts' in the Bible

As soon as we had heard it, our hearts melted, neither did there remain any more spirit in any man, because of you: for Yahweh your God, he is God in heaven above, and on earth beneath.

The men of Ai struck about thirty-six men of them, and they chased them from before the gate even to Shebarim, and struck them at the descent. The hearts of the people melted, and became like water.

For it was of Yahweh to harden their hearts, to come against Israel in battle, that he might utterly destroy them, that they might have no favor, but that he might destroy them, as Yahweh commanded Moses.

"Behold, today I am going the way of all the earth. You know in all your hearts and in all your souls that not one thing has failed of all the good things which Yahweh your God spoke concerning you. All have happened to you. Not one thing has failed of it.