As the 'cherub' was mentioned without any introduction in Ezekiel 9:3, the living chariot with all its parts now appears in the same way. It is not directly stated that the glorious Figure is on the throne. The 'glory' had left the chariot for the threshold of the Temple in Ezekiel 9:3, and is in the same position in Ezekiel 10:4. It may or may not have returned to the chariot in the interval.
Related Commentaries of Ezekiel 10:1
Ezekiel 10:1
1 Then I looked, and, behold, in the firmament that was above the head of the cherubims there appeared over them as it were a sapphire stone, as the appearance of the likeness of a throne.