We have been granted the eyes of God, he thought, eyes which can see the immutable, bloodstained past as if it were today.

She'd always thought the future was like the past; a path that started somewhere and ended somewhere else, solid, immutable.

Is there a tough, immutable past?

The past, immutable, lurches behind us; we are forever tethered to our sins.

To be sure, he is decided in his opinions, likes to surprise, and is well content to impress, if possible, his English whim upon the immutable past.

He hadn't moved from his chair for over an hour, but his mind flitted restlessly between the immutable past and an all too variable future.

He says normal individuals, based on common sense, view the past as something immutable and the future as something that can be changed (it is contingent, as de Carvalho puts it).

The future would be as the past, immutable and unchangeable.