“Her priests have done violence to my law, and have profaned my holy things. They have put no difference between the holy and the common, nor have they caused men to distinguish between the clean and the unclean, and they have hid their eyes from my sabbaths, and I am profaned among them.”
The priests also come under heavy criticism. Doing violence to the Law may suggest that they have distorted it in their teaching (as the Pharisees would later) or it may signify that that they have done violence to it by repressing it and not teaching it at all. The profaning of holy things suggests carelessness in their approach to them, and a tendency to treat them lightly. This is amplified by pointing out that they did not distinguish what was holy according to the Law from what was common, and that they failed to teach the people what was ritually ‘clean' and what was ‘unclean'. This failure would go along with idol worship.
They failed further in not teaching and requiring the keeping of sabbaths, even ignoring the requirements themselves. Thus God Himself was (from their point of view, and from Ezekiel's) being ‘profaned' by ‘contact' with the unclean and by having His feasts ignored. God's demands were no longer being considered as important. It all went with the lax attitude towards His commandments.