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 writings are specifically mentioned as containing some things difficult to understand?
What assurance was given to Daniel concerning the period of time mentioned in verse 14?
In consequence of this, what value did Christ place upon their worship?
What is the character of God, and how only can He be truly worshipped?
Through whom did God create the world?
By what does one gain the victory over the world?
What is promised to the willing and obedient?

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