What is Actus Dei Nemini Facit Injuriam?

Legal Definition
The act of God does injury to no one. 2 Bl. Comm. 122. A thing which is inevitable by the act of God, which no industry can avoid, nor policy prevent, will not be construed to the prejudice of any person in whom there was no laches. Broom, Max. 230.
-- Black's Law Dictionary
Legal Definition
An act of God does not violate anyone’s legal right. See 2 L. R. A. 544.
-- Ballentine's Law Dictionary