וַיִּוָּלֵ֤ד לַֽחֲנוֹךְ֙ אֶת־עִירָ֔ד וְעִירָ֕ד יָלַ֖ד אֶת־מְחֽוּיָאֵ֑ל וּמְחִיּיָאֵ֗ל יָלַד֙ אֶת־מְת֣וּשָׁאֵ֔ל וּמְתוּשָׁאֵ֖ל יָלַ֥ד אֶת־לָֽמֶךְ׃
У Ханоха родился [сын] Ирад, у Ирада родился Мехияэль, у Мехияэля родился Метушаэль, а у Метушаэля родился Лемех.
Rashi
.חנוך AND IRAD BEGET — There are passages where it says of the male הוליד, and there are places where it says ילד, because this root ילד is used in two senses: in reference to a woman giving birth to a child through the agency of a male old French naitre; English to give birth to and the act of begetting by a man old French engendrer; English engender, beget. When it says הוליד, [in the Hiphil form] it speaks of the man in his relation to the act of giving birth by the woman — this or that man caused his wife to give birth to a son or daughter; when it says ילד it refers to the act of begetting by the man himself.
Kitzur Ba'al HaTurim
"Behold, in the heavens there is a solitary judge's plea" in gematria is equal to Enoch, and the Tetragrammaton in gematria is equal to Metatron, whom the Holy One, blessed be He, took one from those of the previous generation of the Flood and one from those of the later generation of the Flood, namely Enoch and Pinchas, and concealed them in heaven to bear witness about Him. He chose Enoch, who was of the seventh generation, since the Holy One, blessed be He, desired the seventh [generation]. Similarly, it is written of Moses, who was of the seventh [generation] from the Patriarchs, "And Moses ascended to God [Elohim]."
Radak
ויולד, he called the first one מחויאל with the letters ו and י, whereas the second one he called מחייאל with two letters י. The first one has dagesh in the letter ו and is read with the vowel kametz, whereas the second letter י in מחייאל is not heard. We have a similar example in Jeremiah 37,13. All the names mentioned here are a reminder of certain events in the lives of the fathers naming the sons. This was a very common method of people remembering important occurrences in their lives in former times. Sometimes, the Torah recorded the event in question, other times it did not. In Bereshit Rabbah 23,2 an attempt is made by Rabbi Yehoshua ben Levi to see in these names proof of the father’s rebellious attitude. [Basically, according to this line of approach, the names reflected the fact that Chanoch, or the respective father naming his son, wished for the name of G’d to be uprooted from the earth. Ed.]