Matthew Poole and continuators on Psalms 105:28

28. He sent darkness, and made it dark: and they▪ rebelled not against his word .

Either, 1. the darkness and other Plagues; which obeyed Gods word, and instantly came at Gods call. So this may be a reflexion upon the Egyptians, that those brutish or unreasonable Creatures were more obedient to the will and command of God than they were. Thus diseases are said to come or go at Gods command, Matt. 8. 8. Or rather, 2. Moses and Aaron, mentioned v. 26. and called they, v. 27. whose obedience in denouncing and inflicting these Plagues, and especially that Plague of darkness, is noted and commended here as an act of great faith and fortitude, because they inflicted that Plague after Pharaoh had threatned them, Exod. 10. 10. as the obedience of their Parents is commended as a great act of faith, because they preserved and hid their Son contrary to the express command of the King of Egypt.

Marginal references: Exod. 10. 22.