Ex 8:20-32 (King James)

   ²⁰ And the LORD said unto Moses, Rise up early in the morning, and stand before Pharaoh; lo, he cometh forth to the water; and say unto him, Thus saith the LORD, Let my people go, that they may serve me. ²¹ Else, if thou wilt not let my people go, behold, I will send swarms of flies upon thee, and upon thy servants, and upon thy people, and into thy houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground whereon they are. ²² And I will sever in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end thou mayest know that I am the LORD in the midst of the earth. ²³ And I will put a division between my people and thy people: to morrow shall this sign be. ²⁴ And the LORD did so; and there came a grievous swarm of flies into the house of Pharaoh, and into his servants' houses, and into all the land of Egypt: the land was corrupted by reason of the swarm of flies. ²⁵ And Pharaoh called for Moses and for Aaron, and said, Go ye, sacrifice to your God in the land. ²⁶ And Moses said, It is not meet so to do; for we shall sacrifice the abomination of the Egyptians to the LORD our God: lo, shall we sacrifice the abomination of the Egyptians before their eyes, and will they not stone us? ²⁷ We will go three days' journey into the wilderness, and sacrifice to the LORD our God, as he shall command us. ²⁸ And Pharaoh said, I will let you go, that ye may sacrifice to the LORD your God in the wilderness; only ye shall not go very far away: intreat for me. ²⁹ And Moses said, Behold, I go out from thee, and I will intreat the LORD that the swarms of flies may depart from Pharaoh, from his servants, and from his people, to morrow: but let not Pharaoh deal deceitfully any more in not letting the people go to sacrifice to the LORD. ³⁰ And Moses went out from Pharaoh, and intreated the LORD. ³¹ And the LORD did according to the word of Moses; and he removed the swarms of flies from Pharaoh, from his servants, and from his people; there remained not one. ³² And Pharaoh hardened his heart at this time also, neither would he let the people go.

Ex 8:20-32 (Vulgate)

   ²⁰ Dixit quoque Dominus ad Moysen : Consurge diluculo, et sta coram Pharaone : egredietur enim ad aquas : et dices ad eum : Hæc dicit Dominus : Dimitte populum meum ut sacrificet mihi.
   ²¹ Quod si non dimiseris eum, ecce ego immittam in te, et in servos tuos, et in populum tuum, et in domos tuas, omne genus muscarum : et implebuntur domus Ægyptiorum muscis diversi generis, et universa terra in qua fuerint.
   ²² Faciamque mirabilem in die illa terram Gessen, in qua populus meus est, ut non sint ibi muscæ : et scias quoniam ego Dominus in medio terræ.
   ²³ Ponamque divisionem inter populum meum et populum tuum : cras erit signum istud.
   ²⁴ Fecitque Dominus ita. Et venit musca gravissima in domos Pharaonis et servorum ejus, et in omnem terram Ægypti : corruptaque est terra ab hujuscemodi muscis.
   ²⁵ Vocavitque Pharao Moysen et Aaron, et ait eis : Ite et sacrificate Deo vestro in terra hac.
   ²⁶ Et ait Moyses : Non potest ita fieri : abominationes enim Ægyptiorum immolabimus Domino Deo nostro : quod si mactaverimus ea quæ colunt Ægyptii coram eis, lapidibus nos obruent.
   ²⁷ Viam trium dierum pergemus in solitudinem : et sacrificabimus Domino Deo nostro, sicut præcepit nobis.
   ²⁸ Dixitque Pharao : Ego dimittam vos ut sacrificetis Domino Deo vestro in deserto : verumtamen longius ne abeatis, rogate pro me.
   ²⁹ At ait Moyses : Egressus a te, orabo Dominum : et recedet musca a Pharaone, et a servis suis, et a populo ejus cras : verumtamen noli ultra fallere, ut non dimittas populum sacrificare Domino.
   ³⁰ Egressusque Moyses a Pharaone, oravit Dominum.
   ³¹ Qui fecit juxta verbum illius, et abstulit muscas a Pharaone, et a servis suis, et a populo ejus : non superfuit ne una quidem.
   ³² Et ingravatum est cor Pharaonis, ita ut nec hac quidem vice dimitteret populum.