Those among Pharaoh’s officials who feared the word of the LORD hurried to bring their servants and livestock to shelter,
20. He that feared the word of the Lord. In these words Moses shows that there were some who were so far taught by experience as not altogether to despise what he had denounced; for hence arose their fear from the denunciation of the punishment, because they were persuaded that Moses was the servant of God, and a Prophet, as well as the herald of the Divine judgment.
Here is, I. A general declaration of the wrath of God against Pharaoh for his obstinacy. Though God has hardened his heart (Exo 9:12), yet Moses must repeat his applications to him; God suspends his grace and yet demands obedience, to punish him for requiring bricks of the children of Israel when he denied them straw.
Commenting on Exodus 9:13-21
He that feared the word of the Lord among the servants of Pharaoh,.... Who, if they had not the true fear of God, and were not sincere proselytes, yet had a servile fear of him, and dreaded his word, his threatening, his denunciations of judgments and predictions of future punishments; of which they had had many instances wherein they were fulfilled, and therefore had reason...