Jerome : (Verse 19 and 20.) And Leah conceived again and gave birth to her sixth son for Jacob. And Leah said, 'God has endowed me with a good endowment. Now my husband will dwell with me, because I have borne him six sons.' And she called his name Zebulun. Wherever we have settled, he will dwell with me.' And the Seventy translated it as 'he will love me.' In Hebrew, it is written as Jezbuleni. And the meaning is that I have borne Jacob six sons, so now I am secure, for my husband will dwell with me. Therefore, my son is called "Habitaculum". However, in the book of Numbers, Zabulon is translated as "fluxus noctis" (night's flow) wrongly and violently. — Hebrew Questions on Genesis