Matthew Poole and continuators on Ezekiel 1:8

8 And they had the hands of a man under their wings on their four sides, and they four had their faces and their wings.

Each of the four living Creatures.

Hands in every Language, especially in the Oriental imply power, and being the cheif instruments of Action, are here ascribed to these active instruments that execute the Commands of God.

This is added to denote the Wisdom, Dexterity, and Vigilance where with they discharge their Ministry.

Their power and manner of exerting it is secret and invisible, and 'tis put forth as God pleaseth to move them.

On each side of the Chariot one of these living Creatures stood, and so on each side hands were ready to act as they were moved, and though 'twas to all parts of the World, yet were they most ready and prepared.

'Tis doubled to confirm the truth and certainty of the thing, and to intimate the greatness of their Power, Agility and Wisdom.