Gregory the Dialogist

Which were taken away before their time, whose foundation was overflown with a flood. Whereas the period of our life is assuredly foreordained for us in the foreknowledge of God, it is a very important question on what principle it is said now, that the wicked are withdrawn from the present world 'before their time.' For Almighty God though He often change His sentence, yet His counsel never. At that time, then, is every man 'taken away' from this life, at which by Divine power he is foreknown to be before all times. …

Morals on the Book of Job, Book XVI ↗

Thomas Aquinas

Lest they appear to do this with impunity he then says, "They were snatched away before their time," because they died without completing their natural span of life, and he assigns the cause for this saying, "and the river undermined their foundation." The foundation of each man is that on which his hope principally rests. Such men do not place their hope in God, but only in temporal things which are corrupted by the changing course itself of things which he calls a river.

Commentary on Job ↗