>> “Claiming that God is going to simply wipe out his own creation and replace it totally with something else is implying that he created it in vain” <<
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No that is also a lie.
He created the material, temporal, universe as a part of his plan, and his plan clearly calls for all things material and temporal to cease when that which is perfect is come.
"Clearly"? I've already cited verses that say that no such thing will happen. If you'd have a look at Strong's, you'd notice that certain verses where the word is translated "new" refers to a renewal. God does not create things in vain.
He created the material, temporal, universe as a part of his plan, and his plan clearly calls for all things material and temporal to cease when that which is perfect is come