To what Old Testament promise did Peter evidently refer?

Answer

"For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into
mind." Isa. 65:17.

What was God's design in thus giving the Scriptures?
In what way are both Jews and Gentiles to be justified?
How futile was all this?
What instruction is given in the New Testament regarding marriage with unbelievers?
Is there any evidence that such an image will be made?
How may grace and peace be multiplied in believers?
Does He afflict to leave the one chastened in despair?

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