Ezekiel 1:17

They — The wheels. Four sides — The wheels being supposed round every way as a globe, by an exact framing of two wheels one in the other; the four semi — circles which are in two whole wheels, may be well taken for these four sides on which these wheels move, and such a wheel will readily be turned to all points of the compass. Returned not — They returned not 'till they came to their journey's end; nothing could divert them, or put them out of their course. So firm and sure are the methods, so unalterable and constant the purposes of God, and so invariable the obedience and observance of holy angels. So subject to the sovereign will of God are all second causes.