Adam Clarke on Ezekiel 24:17

Make no mourning - As a priest, he could make no public mourning, Lev 21:1, etc.

Bind the tire of thine head - This seems to refer to the high priest's bonnet; or perhaps, one worn by the ordinary priests: it might have been a black veil to cover the head.

Put on thy shoes upon thy feet - Walking barefoot was a sign of grief.

Cover not thy lips - Mourners covered the under part of the face, from the nose to the bottom of the chin.

Eat not the bread of men - לחם אנשים lechem anashim, "the bread of miserable men," i.e., mourners; probably, the funeral banquet.