Ezekiel 14 has (wrongly) been used to support the “idols of the heart” doctrine.
However, the passage says nothing about looking for idols in counseling or for any other purpose. What, then, was going on?
Here was a people just about to be exiled for idolatry (physical idolatry—worshiping man-made objects of wood and metal). Ezekiel speaks throughout his book of such, and condemns the people for it.
Here, he describes how bad the problem had become: these same people, going out to Babylon, were about to carry images of the idols they were supposed to leave behind in their hearts!
They were “setting up” these idols upon their hearts so that, even when not physically present, they would be able to put them “before their faces.” What a tragedy! What an attachment to the idolatry they had become so accustomed to!
That’s what the passage is referring to. The idols (now in imagery) would accompany them was they went off in exile. There is nothing about their hearts manufacturing idols; nothing about seeking such imaginary idols in order to deal with counseling problems (biblical counseling was the farthest thing from Ezekiel’s mind).
It is important not to confuse things that differ. Never are these idols (now, literally, ON their hearts) said to be the products of their hearts. Rather, they have been placed on them (in their minds) in order to carry them (in mind) with them.
 The Hebrews had no word for mind—when thinking of it, they used the word “heart.””