Their wings were joined one to another; they turned not when they went; they went every one straight forward.
They turned not when they went. They had no occasion to turn themselves round when changing their direction, because they had a face (Ezekiel 1:6) looking to each of the four quarters of heaven. They made no mistakes, and their work needed not to be gone over again. Their wings were "joined" above in pairs (see Ezekiel 1:11).