en_tn_condensed/isa/66/15.md

Isaiah continues speaking to God's faithful people.

coming with fire

God's appearances in the Old Testament are often accompanied by fire.

like the windstorm

Clouds are often called the chariots of God. (See: rc://en/ta/man/translate/figs-simile)

with his sword

This refers to God's power to judge and to kill his enemies. (See: rc://en/ta/man/translate/figs-metaphor)

Those killed by Yahweh will be many

AT: "Yahweh will kill many people" (See: rc://en/ta/man/translate/figs-activepassive)