John Gill Commentary Ezekiel 28:21

"Son of man, set thy face toward Sidon, and prophesy against it," — Ezekiel 28:21 (ASV)

Son of man, set your face against Zidon
An ancient city, near to Tyre, and in confederacy with it, greatly given to idolatry and superstition; and may design all the antichristian states in the communion of the church of Rome: and prophesy against it ;
the prophet is told to look towards this place with a stern countenance, as before against Tyre; threatening it with ruin, and prophesying of it, in the following manner.