(כ) וַיִּֽהְיוּ֙ כָּל־יְמֵי־יֶ֔רֶד שְׁתַּ֤יִם וְשִׁשִּׁים֙ שָׁנָ֔ה וּתְשַׁ֥ע מֵא֖וֹת שָׁנָ֑ה וַיָּמֹֽת׃ (פ) (כא) וַֽיְחִ֣י חֲנ֔וֹךְ חָמֵ֥שׁ וְשִׁשִּׁ֖ים שָׁנָ֑ה וַיּ֖וֹלֶד אֶת־מְתוּשָֽׁלַח׃ (כב) וַיִּתְהַלֵּ֨ךְ חֲנ֜וֹךְ אֶת־הָֽאֱלֹהִ֗ים אַֽחֲרֵי֙ הוֹלִיד֣וֹ אֶת־מְתוּשֶׁ֔לַח שְׁלֹ֥שׁ מֵא֖וֹת שָׁנָ֑ה וַיּ֥וֹלֶד בָּנִ֖ים וּבָנֽוֹת׃ (כג) וַיְהִ֖י כָּל־יְמֵ֣י חֲנ֑וֹךְ חָמֵ֤שׁ וְשִׁשִּׁים֙ שָׁנָ֔ה וּשְׁלֹ֥שׁ מֵא֖וֹת שָׁנָֽה׃ (כד) וַיִּתְהַלֵּ֥ךְ חֲנ֖וֹךְ אֶת־הָֽאֱלֹהִ֑ים וְאֵינֶ֕נּוּ כִּֽי־לָקַ֥ח אֹת֖וֹ אֱלֹהִֽים׃ (פ)
(20) And all the days of Jared were nine hundred sixty and two years; and he died. . (21) And Enoch lived sixty and five years, and begot Methuselah. (22) And Enoch walked with God after he begot Methuselah three hundred years, and begot sons and daughters. (23) And all the days of Enoch were three hundred sixty and five years. (24) And Enoch walked with God, and he was not; for God took him.
Pesikta de-Rav Kahana, parasha 23
Everything that is the 'seventh' is beloved In the listing of the generations, the seventh is beloved: Adam, Shet, Enosh, Keinan, Mehalalel, Yered, CHANOKH 'And Chanokh walked with the Lord' (Bereishit 5:24); concerning the forefathers, the seventh was beloved: Avraham, Yitzchak, Yaakov, Levi, Kehat, Amram, MOSHE 'And Moshe ascended to the Lord' (Shemot 19:3)."
Midrash Aggada
"And he was no more, for the Lord took him" because he was a righteous man, the Holy One took him from among mortals and made him an angel; ...."
Ralbag
Behold, for this same reason he is not mentioned as having died, while the other people mentioned with him are noted as having died: to indicate the difference between him and them. FOR HE PERFECTED HIS SOUL AND ACHIEVED ITS PERFECTION, while all the others died without achieving this
Bereishit Rabbah 25:1
R. Chama bar Hoshaya said: He is not recorded in the register of the righteous, but rather in the register of the wicked.
Bereishit Rabbah 25:1
Rabbi Aibu taught: Chanokh was fickle; sometimes righteous and at other times wicked. The Holy One said: While he is righteous I shall take him.
Rashi
And Chanokh walked' He was righteous, but it would be easy for him to revert to his [previous] evil ways; therefore the Holy One brought forward the time of his death. This is the reason for the repetitious description of his death: 'He was no more' in the world for the [natural] length of his life, 'for the Lord took him' before his time
Samson Rafael Hirsch
Chanokh sought to refine himself to walk with the Lord; for this reason he distanced himself from the masses either out of fear, or out of disdain. But seclusion and isolation are not the Jewish way. Our pious and righteous people lived among the masses, with the masses and for the benefit of the masses; they regarded it as their mission to elevate the masses towards themselves.
(ט) אֵ֚לֶּה תּוֹלְדֹ֣ת נֹ֔חַ נֹ֗חַ אִ֥ישׁ צַדִּ֛יק תָּמִ֥ים הָיָ֖ה בְּדֹֽרֹתָ֑יו אֶת־הָֽאֱלֹהִ֖ים הִֽתְהַלֶּךְ־נֹֽחַ׃
(9) These are the generations of Noah. Noah was in his generations a man righteous and wholehearted; Noah walked with God.
Rashi (quoting Sanhedrin 108b)
Just in his generation' - Some of our Sages interpreted the text in his favor: how much greater a righteous person he would have been had he lived in a generation of righteous people! Others interpret the text as criticizing him: in his [wicked] generation, he was considered righteous; had he lived in the generation of Avraham, he would not have been considered special in any way.
Zohar (Bereishit 67b)
Noach, when the Holy One told him that he and his sons would be saved, did not ask for mercy for the world, and it was destroyed. Therefore the Flood is named after him, as it is written (Yishayahu 54:9), 'For this is like the waters of Noach to Me; just as I have sworn that the waters of Noach will no longer cover the earth
(א) וַיְהִ֣י אַבְרָ֔ם בֶּן־תִּשְׁעִ֥ים שָׁנָ֖ה וְתֵ֣שַׁע שָׁנִ֑ים וַיֵּרָ֨א יְהוָ֜ה אֶל־אַבְרָ֗ם וַיֹּ֤אמֶר אֵלָיו֙ אֲנִי־אֵ֣ל שַׁדַּ֔י הִתְהַלֵּ֥ךְ לְפָנַ֖י וֶהְיֵ֥ה תָמִֽים׃
(1) And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him: ‘I am God Almighty; walk before Me, and be thou wholehearted.
(מ) וַיֹּ֖אמֶר אֵלָ֑י יְהוָ֞ה אֲשֶׁר־הִתְהַלַּ֣כְתִּי לְפָנָ֗יו יִשְׁלַ֨ח מַלְאָכ֤וֹ אִתָּךְ֙ וְהִצְלִ֣יחַ דַּרְכֶּ֔ךָ וְלָקַחְתָּ֤ אִשָּׁה֙ לִבְנִ֔י מִמִּשְׁפַּחְתִּ֖י וּמִבֵּ֥ית אָבִֽי׃
(40) And he said unto me: The LORD, before whom I walk, will send His angel with thee, and prosper thy way; and thou shalt take a wife for my son of my kindred, and of my father’s house;
(ה) אַחֲרֵ֨י יְהוָ֧ה אֱלֹהֵיכֶ֛ם תֵּלֵ֖כוּ וְאֹת֣וֹ תִירָ֑אוּ וְאֶת־מִצְוֺתָ֤יו תִּשְׁמֹ֙רוּ֙ וּבְקֹל֣וֹ תִשְׁמָ֔עוּ וְאֹת֥וֹ תַעֲבֹ֖דוּ וּב֥וֹ תִדְבָּקֽוּן׃
(5) After the LORD your God shall ye walk, and Him shall ye fear, and His commandments shall ye keep, and unto His voice shall ye hearken, and Him shall ye serve, and unto Him shall ye cleave.