12 And the Lord hardened Pharao's heart, and he hearkened not unto them, as the Lord had spoken to Moses.
13 And the Lord said to Moses: Arise in the morning, and stand before Pharao, and thou shalt say to him: Thus saith the Lord the God of the Hebrews: Let my people go to sacrifice to me.
14 For I will at this time send all my plagues upon thy heart, and upon thy servants, and upon thy people: that thou mayst know there is none like me in all the earth.
15 For now I will stretch out my hand to strike thee, and thy people with pestilence, and thou shalt perish from the earth.
16 And therefore have I raised thee, that I may shew my power in thee, and my name may be spoken of throughout all the earth.
17 Dost thou yet hold back my people: and wilt thou not let them go?
18 Behold I will cause it to rain to morrow at this same hour, an exceeding great hail: such as hath not been in Egypt from the day that it was founded, until this present time.