See the whole former part of this verse explained already, Ezekiel 20:13. Their heart went after their idols; their will and affections, their zeal and resolution, were for their idols which they served in Egypt, and which they had brought with them out of Egypt.
Related Commentaries of Ezekiel 20:16
Ezekiel 20:16
16 Because they despised my judgments, and walked not in my statutes, but polluted my sabbaths: for their heart went after their idols.