출애굽기 8:28의 차시두트

And according to what was said [above], we can aim to understand that which is found in the Midrash: That He sent [word] to him five times, and he did not pay any attention to His words — the Holy One, blessed be He, saying to him, "You have stiffened your neck and you have hardened your heart." As it calculates the five times that the expression of hardening the heart is used: After the wonder of the snake, it is written: Pharaoh’s heart is hard (Exodus 7:14). After the plague of the frogs, it is written: he hardened his heart (Exodus 8:7). After the plague of the mixture of wild animals, it is written: And Pharaoh hardened his heart (Exodus 8:28). After the plague of pestilence, it is written: And the heart of Pharaoh remained hard (Exodus 9:7). And after the plague of hail, it is written: and he hardened his heart, etc. (Exodus 9:34). So since he hardened his own heart and made it impenetrable, this punishment came to him, that the Holy One, blessed be He, [also] hardened his heart and made it impenetrable, as is mentioned above. However, any expression of strengthening of the heart that is written is not counted here. As that is not at all from the same idea as hardening the heart, such that it would not be measure for measure.