וַאֲנִ֗י הִנְנִ֤י מְחַזֵּק֙ אֶת־לֵ֣ב מִצְרַ֔יִם וְיָבֹ֖אוּ אַחֲרֵיהֶ֑ם וְאִכָּבְדָ֤ה בְּפַרְעֹה֙ וּבְכָל־חֵיל֔וֹ בְּרִכְבּ֖וֹ וּבְפָרָשָֽׁיו׃
Adapun Aku, sesungguhnya Aku akan mengeraskan hati orang Mesir sehingga mereka masuk menyusul orang Israel, dan Aku akan dimuliakan melalui Firaun dan seluruh pasukannya, melalui kereta-keretanya dan para penunggang kudanya.
Ramban
AND I WILL HARDEN PHARAOH’S HEART, AND HE SHALL PURSUE AFTER THEM. Because Pharaoh feared them at the plague of the firstborn and he asked them and bless me also,24Above, 12:32. he was not disposed to pursue after the Israelites even if they were to flee, and he would rather have Moses do with them as he pleases. Therefore, it was necessary to state that G-d hardened his heart to pursue after them. Further on, it says once more, And I, behold, I will harden the hearts of the Egyptians, and they shall go in after them.25Further, Verse 17. After the Egyptians saw that the sea had split before the children of Israel and that they walked in the midst of the sea upon dry land, which is the most outstanding wonder of all wonders, how could they be disposed to come in after them to harm them! This was indeed madness on their part. But it was He Who turned their counsel into foolishness26See II Samuel 15:31. and strengthened their hearts to enter the sea.
Ramban
AND MOSES STRETCHED OUT HIS HAND OVER THE SEA; AND THE ETERNAL CAUSED THE SEA TO GO BACK BY A STRONG EAST WIND ALL THE NIGHT. It was His will, may He be blessed, to divide the sea by a strong drying wind, making it appear as if the wind dried the sea, something like that which is written, An east wind shall come, the wind of the Eternal coming up from the wilderness, and his spring shall become dry, and his fountain shall be dried up.69Hosea 13:15. He thus caused the Egyptians to err and then destroyed them,70See Job 12:23. The verse however reads, masgi (He increases) the nations, etc. Ramban interprets it in the sense of mashgi (He causes to err.) A similar usage of this verse appears in Rashi above, Verse 2. The source of this rendition of the verse is in the Mechilta, ibid. for because of this, they thought that perhaps it was the wind which made the sea into dry land, but that it was not the power of G-d that did this for the sake of Israel. Although the wind does not split the sea into sections, they paid no attention even to this and they followed after the Israelites into the sea out of their desire to harm them. This is the intent of the expressions: and I will harden Pharaoh’s heart;71Above, Verse 4. and they shall go in after them.72Verse 17. He hardened their hearts [so that each one] would say: “I will pursue my enemies and I will overtake them in the sea,73Psalms 18:38. See also further, 15:9. and there is none that can deliver out of my hand.”74Deuteronomy 32:39. They did not remember now [what they themselves had said], for the Eternal fighteth for them against the Egyptians.75Further, Verse 25.