Behold, the Torah precedes the plague of locusts with a specific purpose and goal that is not found in the other plagues, as it is written (Shemot 10:1-2): "And the Lord said to Moshe, 'Come to Pharaoh, for I have hardened his heart and the hearts of his servants so that I may place these signs of Mine among them. And so that you may tell in the ears of your son and your grandson how I have dealt harshly with Egypt and My signs which I have placed among them, that you may know that I am the Lord.'"

According to the simple understanding, this means that from this plague until the splitting of the Yam Suf, Pharaoh's heart will be hardened, and therefore, Hashem will deal harshly with him until Pharaoh's chariots and his army drown in the Yam Suf. All of this should be recounted in the ears of the children.

Indeed, the Da'at Zekenim from the Ba'alei Tosafot explained as follows: It appears to me that Moshe understood the plague from what the Holy One, Blessed be He, said to him, "and so that you may tell." It is customary to recount the plague of locusts, for it is also written regarding the plague of locusts in Yoel (Yoel 1:3): "Tell your children about it," end quote. This implies that the recounting mentioned here is specifically about the plague of locusts. This needs explanation, what is the unique wonder in the plague of locusts more than the other plagues? Are not water turning into blood, or the plague of frogs with all its wondrous aspects, especially the plague of wild beasts (Arov), which was beyond all natural occurrences – as explained in the book Panim Yafot (Shemot 8:17), that each animal came with its specific habitat ground so it would 'feel at home.' Additionally, it is written there that even the 'Man of the Earth' [which means, as explained by Rabbi Ovadia of Bartenura (Kilayim Chapter 8 Mishnah 5): "Adnei Hasadeh – a creature that grows in the fields, and a kind of large vine comes out of the ground in which that creature grows, and its name is known, and it is 'Yidoni' mentioned in the Torah (Vayikra 20:27), and it is connected at its navel to that vine coming out of the ground, and its form is the form of a human, with a face, hands, and legs, and no creature is allowed to approach it because it kills and devours anyone who comes near it, end quote] arrived with the ground it was connected to [and so it was explained in the Chanukat HaTorah (Va'era note 57) and Kol Eliyahu (Va'era note 51)] – these are greater wonders than the plague of locusts, which came only to harm the fields of the Egyptians. Similar natural occurrences have been found in later generations. Why then did the Ba'alei Tosafot explain that the plague of locusts arouses special amazement, leading to it being recounted more than the other plagues?