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.

How may we know that we are the sons of God?
Of what is Christian baptism an evidence?
With what words did the chief priests and others mock Jesus while on the cross?
With what words did God admonish Cain?
Of what sin were the Amorites specially guilty?
Did Christ keep the Sabbath?
What will be the fifth plague?

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