calamity for many / destructive fire

In Gbaya, the notion of a calamity affecting a large groups of people at the same time and/or a destructive fire is emphasized in the referenced verses with the ideophone gbɔyɛɛ.

Ideophones are a class of sound symbolic words expressing human sensation that are used as literary devices in many African languages. (Source: Philip Noss)

Translation commentary on Wisdom 18:12

And they all together, by the one form of death, had corpses too many to count: Good News Translation has moved by the one form of death to the end of the verse, but it misunderstands the line. The Greek does not say that those who died “met death in the same way.” It says that those left living, all of them, faced with death together, had too many corpses to count. It may be clearer to speak of “grief” rather than death by rendering these lines as follows: “All of them alike were hit by [or, suffered] the same kind of grief, and there were too many dead bodies to count.”

For the living were not sufficient even to bury them: The connector For may be omitted. For this line Good News Translation is good with “There were not enough people left to bury them all,” although translators could expand this to say “… people left alive to bury them all.”

Since in one instant their most valued children had been destroyed: The children who died were their most valued because they were the oldest or firstborn. Good News Translation has a reasonable approach: “In a single moment their dearest children died.”

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on The Wisdom of Solomon. (UBS Helps for Translators). New York: UBS, 2004. For this and other handbooks for translators see here.