“Because they rejected my judgments and did not walk in my statutes, and profaned my sabbaths, for their heart went after their idols.”
The reason for His anger is again declared. They rejected His judgments and did not walk in His statutes. God's requirements were put aside and ignored for the sake of their idols. They broke the covenant with Yahweh. And their idol worship led to them desecrating the Sabbath, presumably justifying it on religious grounds. We too may have our idols, things which we set our hearts on which prevent us living in accordance with God's will and requirements. And they too will bring judgment on us.