"ואני אקשה את לב פרעה והרביתי את אותתי ואת מופתי בארץ מצרים"

And I will harden Pharaoh’s heart, and multiply My signs and My wonders in the land of Egypt.

And unto this people thou shalt say: Thus saith the LORD: Behold, I set before you the way of life and the way of death.

Another explanation: For I have hardened his heart - Rabbi Yochanan said: Does this not provide heretics with an opportunity to open their mouths to say that he had no means of repenting, as it say "For I have hardened his heart". Rabbi Shimon ben Lakish said to him: Let the mouths of the heretics be stopped up. Rather, (Mishlei 3:34) If it concerns the scorners, he scorns them. When the Holy One Blessed be He warns a man once, twice, thrice and he doesn't repent, and G-d will close his heart against repentance so that He should not exact vengeance from him for his sins. So to with the wicked Pharaoh, since Hashem sent five times to him and he took no notice, G-d then said: "You have stiffened your neck and hardened your heart; well, I will add impurity to your impurity". Hence, "For I have hardened his heart". What does "I have hardened" imply? That G-d made his heart like a liver (כבד) into which even if boiled a second time no juice enters; so also was the heart of Pharaoh made like a liver, and he did not receive the words of G-d. Hence, "For I have hardened his heart".

ואני אקשה, seeing that G’d is interested in the sinner’s repentance rather than his death (as we know from Ezekiel 33,11 חי אני, נאום ה', אם אחפוץ במות הרשע כי אם בשובו מדרכו וחיה, “by My life, I do not want the death of the wicked but that he return from his wicked path and live”), G’d told Moses that He would bring on numerous plagues, all in order to increase the chances that Pharaoh would finally see the light and become a genuine penitent. He hoped that by demonstrating His greatness and His power this would eventually cause the Egyptians to recognise all this. At the same time, G’d also spelled out a similar thought in 9,16 but aimed at the Israelites, when He said: “that the only reason He had not yet killed Pharaoh was so that in the course of more plagues you, the Jewish people, would come to recognise both G’d’s greatness and His patience.“ He also wanted the Jewish people to learn how to both love and revere Him when they witnessed and thought about the meaning of all these plagues. There can be no question that without G’d stiffening Pharaoh’s attitude from time to time, he would have collapsed much sooner and would have sent the Israelites on their desired journey. However, this would not have been the result of his repentance and humbling himself before the Lord, involving genuine regret about his previous errors, but the result of his impotence to withstand the pressure applied to him. He would have acted out of terror of what the next plague would do to him and to his country. If we needed confirmation of this, all we have to do is look at what his servants said to him when Moses threatened with the plague of locust. They said to him: “how long will you be obstinate, do you not see that Egypt will go down the drain?!” There was not a single word of regret of past errors, no word of recognition that G’d could have killed them all long before this and that He must therefore be very patient, and kind, but mere terror forced them to utter these words. (10,7) Keeping all this in mind, it is foolish to ask how G’d could punish Pharaoh after he Himself had interfered with his decision-making process by “stiffening his heart,” ואני אקשה את לב פרעה, I will stiffen the heart of Pharaoh, etc.” not in order to punish him but in order to finally trigger repentance in his heart. The operative clause is “in order that I can demonstrate all these miracles of Mine in his midst” (10,1), the purpose being to bring about his humbling himself in repentance and genuine contrition. If that wish of G’d would indeed materialise, the Jewish people also would tell of G’d’s greatness, (למען ספר את שמי, having observed at first hand how the mightiest secular power on earth turned into G’d fearing human beings.) They would tell their children and children’s children the lesson they had learned that G’d’s apparent cruelty is actually an act of loving kindness as it results in His creatures coming to love and to revere Him. [Noach, who had survived the destruction of mankind by a deliberate act of G’d’s kindness to him and his family, had not been able to relate to his children what G’d hoped that the Israelites would be able to relate to their children. Ed.] The basic lesson in ethics we derive from all this is that when suffering an affliction we must first and foremost examine our past actions to find out where we went wrong, and try to find out what these afflictions are intended to trigger in our memory so that we can improve our conduct both vis-à-vis G’d and our fellow man.

The Gemara asks: Let him enter through that opening, as the kuf is open on both sides at the bottom.The Gemara answers: This supports the statement of Reish Lakish, as Reish Lakish said: What is the meaning of that which is written: “If it concerns the scorners, He scorns them, and unto the humble He gives grace” (Proverbs 3:34)? One who comes in order to become impure, i.e., to sin, they, in Heaven, provide him with an opening to do so, and he is not prevented from sinning. However, if he comes in order to become purified, not only is he allowed to do so, but they, in Heaven, assist him.