en_tn_lite_do_not_use/isa/64/01.md

The people of Israel continue speaking to Yahweh. (See: Isaiah 63:11)

as when fire kindles the brushwood, or the fire makes water boil

This //possibly// emphasizes how easily God's presence would have caused the mountains and the people to tremble. (See: rc://en/ta/man/translate/figs-simile)