In verse 5, he sees the "image of jealousy" that had been set up in the Temple, an image that had caused God to go far away from the sanctuary (verse 6). This is probably some type of abomination that makes desolate, a pagan idol that had actually been set up in the gate of the Temple courtyard in Jerusalem.
At the end of verse 6, God tells Ezekiel he will see "greater abominations." He spies a hole in a wall in the court of the Temple (verse 7) and obeys God's command to dig around that hole (verse 8). Behind it, lo and behold, he finds a doorway. The door admits him into a very private, hidden inner chamber, the walls of which are engraved with pagan idols, which are, as it says in verse 10, "all the idols of the house of Israel."
In this idol-bedecked room are seventy elders of Israel, "each man had a censer in his hand." Ezekiel is witnessing some kind of pagan worship service going on behind closed doors right there in the Temple! It is very clandestine. Note that the worshippers are not extremists on the fringes of Israelite society, but they are the elders, the leaders of the land! They might be considered the preachers of Judah.
Did Ezekiel witness the movers and shakers of American society in a satanic Skull-and-Bones-type service attended by the President of the United States? That would be a modern, contemporary version of this type of vision, for the leaders of Ephraim and Manasseh today are deeply involved in the occult, witchcraft, and pagan practices to this day. They are all abominations, all very furtive, secret, and surreptitious.
The Torment of the Godly (Part One)