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You have asked :-
"Why doesn't God make the earth swallow up atheists and other unbelievers? Why doesn't God consume people with a glance?
Is it that God has changed? God has lost his power somewhere?"
Christianity revolves upon the issue that the world changed at or shortly after the crucifixion of Jesus
Between Eden and The Crucifixion, Satan was the lawful ruler of planet Earth
Because of that, during that period, God's relationship with humanity was under the default authority of Creation Law
The events you refer to are a direct result of that
After the crucifixion, Jesus descended into Hell
Hell was Lord Jesus' first reconquered territory
He who rules Hell rules Earth
Satan was overthrown and Lord Jesus was now the ruler of the whole of our universe
What Christian pharisees have failed to grasp is that Lord Jesus was the God of the Old Testament
He was the creator and ruler of our universe before Eden
During the period that Satan ruled Earth, it was Jesus who almost exterminated humanity with the flood and it was Jesus who later slaughtered the entire first-born of the nation of Egypt
Christian pharisee teaching that Lord Jesus is a hippie personality who can only love, is nonsense
Once he had defeated Satan he simplified access to the Lower Heaven
At the Sermon On The Mount he had told humanity exactly what he required
He then made it plain that he had the power to forgive those on that path
who failed to reach perfection
God does not make the earth swallow up atheists because we are no longer ruled by the crude default of Creation Law
Exactly the same God rules us but his post-crucifixion laws revolve upon personal sacrifice
In as much as you love your neighbor as your self - by that much will your life go right
In as much as you don't - by that much will your life go wrong
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