15 Then God said to Abraham: “As for your wife Sarʹai,*+ you must not call her Sarʹai, because Sarah* will become her name. 16 I will bless her and also give you a son by her;+ I will bless her and she will become nations; kings of peoples will come from her.”

12 Then God said to Abraham: “Do not be displeased by what Sarah is saying to you about the boy and about your slave girl. Listen to her,* for what will be called your offspring* will be through Isaac.+