Genesis 12:4

And Abram was seventy and five years old - As Abram was now seventy-five years old, and his father Terah had just died, at the age of two hundred and five, consequently Terah must have been one hundred and thirty when Abram was born; and the seventieth year of his age mentioned Genesis 11:26 , was the period at which Haran, not Abram, was born. See on Genesis 11 (note).