וַיִּֽקַּֽח־ל֥וֹ לֶ֖מֶךְ שְׁתֵּ֣י נָשִׁ֑ים שֵׁ֤ם הָֽאַחַת֙ עָדָ֔ה וְשֵׁ֥ם הַשֵּׁנִ֖ית צִלָּֽה׃
And Lamech took unto him two wives; the name of one was Adah, and the name of the other Zillah.
Read kabbalistic (mystical) interpretation of Genesis 4:19: and classical mystical sources.