וַתַּ֣הַר עוֹד֮ וַתֵּ֣לֶד בֵּן֒ וַתֹּ֗אמֶר עַתָּ֤ה הַפַּ֙עַם֙ יִלָּוֶ֤ה אִישִׁי֙ אֵלַ֔י כִּֽי־יָלַ֥דְתִּי ל֖וֹ שְׁלֹשָׁ֣ה בָנִ֑ים עַל־כֵּ֥ן קָרָֽא־שְׁמ֖וֹ לֵוִֽי׃
And she conceived again, and bore a son; and said: ‘Now this time will my husband be joined unto me, because I have borne him three sons.’ Therefore was his name called Levi.
Read kabbalistic (mystical) interpretation of Genesis 29:34: and classical mystical sources.