RobH_en_tn/mat/25/30.md

the outer darkness

Here "outer darkness" is a metonym for the place where God sends those who reject them. This is a place that is completely separated from God forever. See how you translated this in Matthew 8:12. Alternate translation: "the dark place away from God" (See: rc://en/ta/man/translate/figs-metonymy)

weeping and grinding of teeth

"Grinding of teeth" is symbolic action, representing extreme sadness and suffering. See how you translated this in Matthew 8:12. Alternate translation: "weeping and expressing their extreme suffering" (See: rc://en/ta/man/translate/translate-symaction)