Matthew Poole, Synopsis Criticorum, Vol. 5: Exodus 19-40 (2008 ed.), p. 44 (re: Ex. 20.6):
He reveals how much more abundant He is in conferring benefits than in punishing. This is what the Hebrews mean when they say that Michael flies with one wing, Gabriel with two.
Jeremy Taylor, The Life of our Blessed Lord and Saviour Jesus Christ in The Whole Works of the Right Rev. Jeremy Taylor, Vol. 2, p. 401:
For mercy is an attribute, in the manifestation of which as all our happiness consists, so God takes greatest complacency and delights in it above all His works other works: He "punishes to the third and fourth generation," but "shews mercy unto thousands." Therefore the Jews say that Michael flies with one wing, and Gabriel with two; meaning that the pacifying angel, the minister of mercy, flies swift, but the exterminating angel, the messenger of wrath, is slow.
Jeremy Taylor, Sermon VII: Preached at the Funeral of the Lord Primate of Ireland in The Whole Works of the Right Rev. Jeremy Taylor, Vol. 6, p. 413:
[F]or, according to the proverb of the Jews -- "Michael flies but with one wing, and Gabriel with two;" God is quick in sending angels of peace, and they fly apace; but the messengers of wrath come slowly: God is more hasty to glorify His servants than to condemn the wicked.