John Gill, on Gen 11:20

And Nahor lived twenty nine years, and begat Terah. The father of Abraham, and the first of the patriarchs of this line of Shem that fell off from the true religion to idolatry. And Nahor lived twenty nine years, and begat Terah. The father of Abraham, and the first of the patriarchs of this line of Shem that fell off from the true religion to idolatry. Genesis 11:25 gen 11:25 gen 11:25 gen 11:25And Nahor lived, after he begat Terah, one hundred and ninteen years,.... In all one hundred and forty eight years; so sensibly did the lives of the patriarchs decrease: in the days of Nahor, the Arabic writers (t) say, was a great earthquake, which had never been observed before; idolaters increasing and offering their children to demons, God raised a tempest like a deluge, which broke their images and destroyed their temples in Arabia, and covered them in heaps of sand, which remained to the days of those writers, as they affirm: in his days it is also said Spain, Portugal, and Arragon were founded (u): and begat sons and daughters; of whom no other account is given: he died, as a Jewish chronologer says (w), in the one hundred and tenth year of Abraham. (t) Patricides, p. 15. Elmacinus, p. 30. apud Hottinger. p. 279, 280. (u) Juchasin, fol. 135. 2. (w) R. Gedaliah, ut supra. (fol. 2. 1.)