Then I looked, and there above the expanse over the heads of the cherubim was something like sapphire stone resembling the shape of a throne that appeared above them.
References for Ezekiel 10:1
The Lord spoke to the man clothed in linen and said, "Go inside the wheelwork beneath the cherubim. Fill your hands with hot coals from among the cherubim and scatter [them] over the city." So he went in as I watched.
Now the cherubim were standing to the south of the temple when the man went in, and the cloud filled the inner court.
References for Ezekiel 10:3
Then the glory of the Lord rose from above the cherubim to the threshold of the temple. The temple was filled with the cloud, and the court was filled with the brightness of the Lord's glory.
The sound of the cherubim's wings could be heard as far as the outer court; it was like the voice of God Almighty when He speaks.
After the Lord commanded the man clothed in linen, saying, "Take fire from inside the wheelwork, from among the cherubim," the man went in and stood beside a wheel.