John Wesley on Leviticus 26:30

High places - In which you will sacrifice after the manner of the Heathens. The carcases of your idols - So he calls them, either to signify that their idols how specious soever or glorious in their eyes, were in truth but lifeless and contemptible carcases; or to shew that their idols should be so far from helping them, that they should be thrown down and broken with them, and both should lie together in a forlorn and loathsome state.