en_tn_lite_do_not_use/psa/037/011.md

his day is coming

AT: "the day is coming when Yahweh will judge and punish the wicked people"

gnashes his teeth against him

This picture shows the hatred wicked people feel for righteous people so their teeth clench together. "Teeth" represents the person. (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-idiom)