And Terah lived seventy years, and begat Abram, Nahor, and Haran - Haran was certainly the eldest son of Terah, and he appears to have been born when Terah was about seventy years of age, and his birth was followed in successive periods with those of Nahor his second, and Abram his youngest son. Many have been greatly puzzled with the account here, supposing because Abram is mentioned first, that therefore he was the eldest son of Terah: but he is only put first by way of dignity. An in stance of this we have already seen, Genesis 5:32, where Noah is represented as having Shem, Ham, and Japheth in this order of succession; whereas it is evident from other scriptures that Shem was the youngest son, who for dignity is named first, as Abram is here; and Japheth the eldest, named last, as Haran is here. Terah died two hundred and five years old, Genesis 11:32; then Abram departed from Haran when seventy-five years old, Genesis 12:4; therefore Abram was born, not when his father Terah was seventy, but when he was one hundred and thirty.
When any case of dignity or pre-eminence is to be marked, then even the youngest son is set before all the rest, though contrary to the usage of the Scriptures in other cases. Hence we find Shem, the youngest son of Noah, always mentioned first; Moses is mentioned before his elder brother Aaron; and Abram before his two elder brethren Haran and Nahor. These observations are sufficient to remove all difficulty from this place.

And Terah lived seventy years, and begat Abram, Nahor, and Haran. Abram, though named first, does not appear to be the eldest, but rather Haran; nay, it seems pretty plain that Abram was not born until the one hundred and thirtieth year of his father's life, for Terah was two hundred and five years old when he died, Genesis 11:32 and Abram was but seventy five years of age when he went out of Haran to Canaan, Genesis 12:4 and that was as soon as his father died there; and so that if seventy five are taken out two hundred and five, there will remain one hundred and thirty, in which year and not before Abram must be born: the wife of Terah, of whom Abram was born, according to the Jewish writers (x), her name was Chamtelaah, the daughter of Carnebo, or as others (y) call her, Amthalai; but by the Arabic writers (z) she is called Juna: the Jews say (a) Terah was the first that found out the way of coining money, and that in his days men began to worship images, and that he was the chief of their priests, but afterwards repented; and that he was an idolater appears from Joshua 24:2.
(x) Shalshalet Hakabala, fol. 2. 1. & Bathra in ib. (y) Pirke Eliezer, c. 26. (z) Elmacinus, p. 31. Patricides, p. 17. apud Hottinger. p. 281. (a) Shalshalet, fol. 76. 1.