John Calvin on Exodus 10:4-6

4. Else, if thou refuse. Moses denounces the extreme dearth and famine of the land of Egypt, because the locusts will suddenly arise, altogether to consume the remaining produce of the year; for half of it had already been destroyed by the hail. But, although ancient histories bear witness, and it has happened also in our time, that not only cornfields, but that pastures have been devoured by locusts, still we may gather from the circumstances, that this was an extraordinary instance of the divine vengeance; because Moses both appoints the next day, and also relates that an incredible multitude suddenly burst forth, and adds, that such had never been seen; and, lastly, threatens that no house should be exempt from their invasion. Moreover, it is worth while again to remark the nature of the scourge, that God collects and arms a host of vile insects, whereby He may insultingly overcome this indomitable tyrant with all his forces. The ingratitude of Egypt, too, was worthy of this return, since it was too great an indignity that the posterity of Joseph should be tyrannically persecuted in that. country, which a little more than 250 years before he had preserved from famine by his energy. What follows in verse 6, that “he turned himself, and went out from Pharaoh,” is recorded as a token of his indignation; as though Moses, worn out with the perverseness of the tyrant, had hastily withdrawn himself from him, without bidding him farewell. Therefore, although he was otherwise of a mild disposition, this peremptory harshness was to be adopted as a reproof of the arrogance with which the tyrant spit in the face of heaven itself. But, let the Pharaohs of our age also learn, that when they impede by their cruel menaces the pure worship of God, it is in His strict justice that fanatics, like locusts, assail their kingdoms with their impious errors, and infect their people with contagion.

Exodus 10:7-11

7. And Pharaoh’s servants said unto him, How long shall this man be a snare unto us? let the men go, that they may serve the Lord their God: knowest thou not yet that Egypt is destroyed?

7. Dixerunt autem servi Pharaonis ad eum, Quousque erit hic vobis in offendiculum? Dimitte homines, ut serviant Jehovae Deo suo. An ante scies quod perierit AEgyptus? (vel, Antequam scies periisse Aegyptum.)

8. And Moses and Aaron were brought again unto Pharaoh: and be said unto them, Go, serve the Lord your God: but who are they that shall go?

8. Et reductus est Moses atque Aharon ad Pharaonem: dixitque ad eos, Ite et servite Jehovae Deo vestro. Qui sunt qui abibunt?

9. And Moses said, We will go with our young and with our old, with our sons and with our daughters, with our flocks and with our herds will we go: for we must hold a feast unto the Lord.

9. Et ait Moses, Cum pueris nostris, et cum senioribus nostris ibimus, cum filiis nostris et filiabus nostris, cum ovibus nostris, et cum armentis nostris ibimus: quia festus dies Jehovae nobis est.

10. And he said unto them, Let the Lord be so with you, as I will let you go, and your little ones: look to it; for evil is before you.

10. Tunc dixit illis, Ita sit Jehova vobiscum, ut vos dimittam, et parvulos vestros. Videte, quia malum est coram vobis.

11. Not so: go now ye that are men, and serve the Lord; for that ye did desire. And they were driven out from Pharaoh’s presence.

11. Non sic, Ite nunc viri, et servite Jehovae: quia vos hoc postulastis. Et ejecit eos a facie Pharaonis.