Exodus 10:1-10

1 And the LORD said unto Moses, Go in unto Pharaoh for I have hardened his heart and the heart of his slaves that I might show these my signs among them
2 and that thou may tell in the ears of thy sons and of thy son’s sons the things I did in Egypt and my signs which I gave among them and that ye may know that I am the LORD.
3 Then Moses and Aaron came in unto Pharaoh and said unto him, Thus hath the LORD God of the Hebrews said, How long wilt thou refuse to humble thyself before me? Let my people go that they may serve me.
4 For if thou refuse to let my people go, behold, tomorrow I will bring the locusts into thy borders,
5 and they shall cover the face of the earth that one will not be able to see the earth, and they shall eat the residue of that which is escaped, which remains unto you from the hail and shall eat every tree which produces fruit for you out of the field:
6 And they shall fill thy houses and the houses of all thy slaves and the houses of all the Egyptians, which neither thy fathers, nor thy fathers’ fathers have seen since the day that they were upon the earth unto this day. And he turned himself and went out from Pharaoh.
7 Then Pharaoh’s slaves 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?
8 And Moses and Aaron were brought again unto Pharaoh; and he said unto them, Go, serve the LORD your God. Who are those that shall go?
9 And Moses replied, We must go with our young and with our old, with our sons and with our daughters, with our sheep and with our cows we must go; for we have a solemn feast unto the LORD.
10 And he said unto them, Even if the LORD be with you, how can I let you go with your little ones; look at the malice which is before your face.