Genesis 25:26

25:26 When his brother came out with ¹  his hand clutching Esau’s heel, they named him Jacob. ²  Isaac was sixty years old ³  when they were born.

Genesis 46:26

46:26 All the direct descendants of Jacob who went to Egypt with him were sixty-six in number. (This number does not include the wives of Jacob’s sons.) ⁴ 

¹ tn The disjunctive clause describes an important circumstance accompanying the birth. Whereas Esau was passive at birth, Jacob was active.

² tn Heb “And he called his name Jacob.” Some ancient witnesses read “they called his name Jacob” (see v. 25). In either case the subject is indefinite.

³ tn Heb “the son of sixty years.”

⁴ tn Heb “All the people who went with Jacob to Egypt, the ones who came out of his body, apart from the wives of the sons of Jacob, all the people were sixty-six.”