'Heart' in the Bible

On the seventh day, as the heart of the king is glad with wine, he hath said to Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven eunuchs who are ministering in the presence of the king Ahasuerus,

And Haman goeth forth on that day rejoicing and glad in heart, and at Haman's seeing Mordecai in the gate of the king, and he hath not risen nor moved for him, then is Haman full of fury against Mordecai.

And Haman cometh in, and the king saith to him, 'What -- to do with the man in whose honour the king hath delighted?' And Haman saith in his heart, 'To whom doth the king delight to do honour more than myself?'

And the king Ahasuerus saith, yea, he saith to Esther the queen, 'Who is he -- this one? and where is this one? -- he whose heart hath filled him to do so?'