Genesis 37:3

He was the son of his old age. — Jacob was ninety-one when Joseph was born; but at Benjamin’s birth he was eight or nine years older; and according to the common belief that Jacob was only twenty years in Padan-aram, the four sons of the handmaids must have been about Joseph’s age, and Leah’s last two sons even younger. But the epithet is intelligible if Jacob had waited twenty-seven years after his marriage with Rachel, before Joseph was born. There would then be a considerable interval between him and the other sons; and though Rachel had a second son some years afterwards, yet Joseph would continue to be the son long looked for, whose birth had given him so great happiness; whereas his joy at Benjamin’s coming was bought at the terrible price of the mother’s death.

A coat of many colours. — Two explanations are given of this phrase; the first, that it was a long garment with sleeves or fringes; the other, that it was composed of patchwork of various colours. The latter is the more probable interpretation; for from the tomb at Beni-Hassan we learn that such dresses were worn in Palestine, as a train of captive Jebusites is represented upon it clad in rich robes, the patterns of which seem to have been produced by sewing together small pieces of different colours. So also in India beautiful dresses are made by sewing together strips of crimson, purple, and other colours. (Roberts’ Oriental Illustrations, p. 43.) Some have thought that Jacob by this dress marked out Joseph as the future head of the family, in the place of Reuben, supposing it to indicate the priestly office borne by the firstborn; but this is doubtful, and it was Judah to whom Jacob gave the right of primogeniture.