What did God say to Abraham concerning his wife, Sarah?

Answer

"And I will bless her, and give thee a son also of her: yea, I will bless her, and she shall be a mother of
nations; kings of people shall be of her." Gen. 17: 16.

What did this bring to him?
In what other statement is this same truth expressed?
To whom does vengeance belong?
Do Protestant writers acknowledge the same?
What other sign, or wonder, appeared in heaven?
What will this power propose that the people shall do?
Why does Christ desire this growth in His followers?

Questions & Answers are from the book Bible Readings for the Home Circle