John Gill Commentary Ezekiel 11:21

"But as for them whose heart walketh after the heart of their detestable things and their abominations, I will bring their way upon their own heads, saith the Lord Jehovah." — Ezekiel 11:21 (ASV)

But [as for them] Who remained in Jerusalem, and were not carried captive, but continued in their own land, and worshipped idols, the same as in (Ezekiel 11:15); whose heart walks after the heart of their detestable things and their abominations;

not images of gold and silver, which cannot be said to have a heart; but devils and evil spirits worshipped in them, who are well pleased and delighted with the worship given them; so that the hearts of the devils worshipped, and the hearts of the idolatrous worshippers, were alike and agreed; wherefore their hearts were very different from those before mentioned; so far from having one heart, that their hearts were double and divided, partly after God, and partly after their idols; and so far from walking in the statutes of the Lord, that they were walking after the will of their idols, and in the worship of them; which were abominable and detestable to God, and all good men.

The Targum is, "and after the worship of their idols, and of their abominations, their heart wanders."

I will recompense their ways upon their own heads, says the Lord God, that is, punish them according to their deserts, by the sword, famine, pestilence, and captivity.