act of God
force majeure
vis major
inevitable accident
unavoidable casualty

It will take an act of God to get the papers in on time.

With the major, failure was never an act of God.

Sometimes what brings them in is an act of God.

But it was a pure act of God, our meeting.

It was, as the court ruled, an act of God and nothing more.

So what was the difference between an act of God and a natural disaster?

Think a spring in there was an act of God?

"People look at development as an act of God," she said.

An act of God prevents her from being here today.

But this recent earthquake was indeed an act of God.