en_tn_lite_do_not_use/psa/044/003.md

by their own sword

The word "sword" refers to the military power. (See: rc://en/ta/man/translate/figs-metonymy)

your arm

Yahweh's arm refers to his power. AT: "your power" (See: rc://en/ta/man/translate/figs-metonymy)

the light of your face

This part of Yahweh refers to his guidance. AT: "your guidance" (See: rc://en/ta/man/translate/figs-metonymy)

victory for Jacob

The people of Israel are referred to by the name of their ancestor "Jacob". (See: rc://en/ta/man/translate/figs-metonymy)