An eternal Heaven is a reality the Bible often speaks about. In fact, the Bible speaks about a new heavens and a new earth. This is long hand for saying a Renewed Universe. Just as in Genesis 1:1 where “in the beginning God created the heavens and the earth”, Isaiah 65:17 says that God will create a new heavens and a new earth for His glory and the good of his people.
“For behold, I create new heavens and a new earth,
and the former things shall not be remembered or come into mind.
But be glad and rejoice forever in that which I create;
for behold, I create Jerusalem to be a joy and her people to be a gladness.