en_tn_condensed/exo/15/14.md

tremble

This means to shake because you are afraid.

terror will seize the inhabitants of Philistia

Moses speaks of terror as if it were a person that could forcefully grab hold of someone and make them extremely afraid. Alternate translation: "the inhabitants of Philistia will be afraid" (See: rc://en/ta/man/jit/figs-personification)