וַֽיְחִ֣י חֲנ֔וֹךְ חָמֵ֥שׁ וְשִׁשִּׁ֖ים שָׁנָ֑ה וַיּ֖וֹלֶד אֶת־מְתוּשָֽׁלַח׃
Hénoc vécut soixante-cinq ans, et engendra Mathusalem.
Sefer HaYashar (midrash)
And it was at the end of many years when Zillah became old that the Lord remembered her, and she conceived and bare a son and called his name Tubal-Cain, saying: After I have withered away I have obtained pleasure and joy. And Lamech became aged and advanced in years, and his eyes grew dim so that he could not see, and Tubal Cain his son was his guide. One day Lamech and his son Tubal-Cain went out for a walk, and as they passed on through the fields together, Cain the son of Adam was walking to and fro in another field opposite them. Now Lamech was very old and unable to see and Tubal Cain a mere child, and seeing something moving about in the distance, Tubal-Cain directed his father's bow and bade him shoot at what he took for a wild animal. Lamech did accordingly discharge his weapon and slew Cain with his arrows. And as the arrows entered Cain’s body, he being in the distance, he fell prostrate upon the ground and died. Thus the Lord repaid unto Cain evil according to the wickedness that he had done unto his brother Abel, in keeping with the word of the Lord which he hath spoken unto him. And when Cain was dead, Lamech and Tubal-Cain went to see what kind of an animal they had killed, and they found Cain their grandfather lying dead upon the ground. And Lamech was greatly grieved for having done that deed and in his sorrow and lamentation he clapped his hands together, and while doing so he struck his son with his hands, and killed him. And when the wives of Lamech heard what Lamech had done they sought to kill him. And the wives of Lamech hated him from that day on, because of his having killed Cain and Tubal-Cain, and the wives of Lamech separated from him, and would not even lis ten to his explanation in those days. But finally La mech came and pressed them to hear him on that matter, and he said unto his wives: Adah and Zillah listen to my voice, wives of Lamech give ear unto my words. Now you believe and say that I have slain a man to my wounding and a young man to my hurt, for no harm done to me. Do you not know that I am old and gray and that mine eyes are heavy, wherefore I must have done all those things without my knowledge? And the wives of Lamech hearkened unto these words and returned unto him, following the advice of their father Adam. Yet they bare him no children from that day on, for they knew that the anger of the Lord was growing daily against the sons of man in those days, to destroy them by the waters of the flood, on account of their wickedness. And Mehalaleel son of Cainan lived sixty-five years and begat Jared; and Jared lived one hundred and sixty two years and begat Enoch; and Enoch lived sixty-five years and begat Methuselah. And Enoch walked with God after he begat Methuselah; and he served the Lord and despised the evil ways of the sons of man, and Enoch’s soul was wedded to morality to wisdom and to understanding, and he learned the ways of the Lord. And in his wisdom he separated himself from the sons of man, and he isolated himself against them for many days.