Jerome : (Verse 18.) And it came to pass, when her soul departed, for she died, that he called her name, 'The Son of my Sorrow'; but his father called his name Benjamin. In Hebrew, the similarity of the name is echoed; for the son of my sorrow, which the dying mother gave him as a name, is called Benoni (). However, the son of the right hand, that is, of strength, which Jacob changed, is called Benjamin. Hence, those who think Benjamin () is interpreted as 'Son of Days' are mistaken. For when the right hand is called Jamin (), and it ends in the letter n: the days are indeed called Jamim (), but they end in the letter m. — Hebrew Questions on Genesis