Ezekiel 1:9

1:9 their wings touched each other; they did not turn as they moved, but went straight ahead.

Ezekiel 1:17

1:17 When they moved they would go in any of the four directions they faced without turning as they moved.

Ezekiel 10:22

10:22 As for the form of their faces, they were the faces whose appearance I had seen at the Kebar River. Each one moved straight ahead.