Genesis 5:30

5:30 Lamech lived 595 years after he became the father of Noah, and he had other ¹  sons and daughters.

Genesis 17:17

17:17 Then Abraham bowed down with his face to the ground and laughed ²  as he said to himself, ³  “Can ⁴  a son be born to a man who is a hundred years old? ⁵  Can Sarah ⁶  bear a child at the age of ninety?” ⁷ 

[5:30]  ¹ tn The word “other” is not in the Hebrew text, but is supplied for stylistic reasons.

[17:17]  ² sn Laughed. The Hebrew verb used here provides the basis for the naming of Isaac: “And he laughed” is וַיִּצְחָק (vayyitskhaq); the name “Isaac” is יִצְחָק (yitskhaq), “he laughs.” Abraham’s (and Sarah’s, see 18:12) laughter signals disbelief, but when the boy is born, the laughter signals surprise and joy.

[17:17]  ³ tn Heb “And he fell on his face and laughed and said in his heart.”

[17:17]  ⁴ tn The imperfect verbal form here carries a potential nuance, as it expresses the disbelief of Abraham.

[17:17]  ⁵ tn Heb “to the son of a hundred years.”

[17:17]  ⁶ sn It is important to note that even though Abraham staggers at the announcement of the birth of a son, finding it almost too incredible, he nonetheless calls his wife Sarah, the new name given to remind him of the promise of God (v. 15).

[17:17]  ⁷ tn Heb “the daughter of ninety years.”