Ezekiel 1:6-10

But each one had four faces and each one had four wings.

And their legs were straight legs, and the sole of their feet was like the sole of a calf's foot, and they sparkled like burnished bronze.

And they had the hands of a man under their wings on their four sides. And the four of them had their faces and their wings thus:

Their wings touched one another; they turned not when they went but went every one straight forward.

As for the likeness of their faces, they each had the face of a man [in front], and each had the face of a lion on the right side and the face of an ox on the left side; the four also had the face of an eagle [at the back of their heads]. [Rev. 4:7.]