Becoming fearful and trembling is spoken of as if fearfulness and trembling are things that come on a person. Alternate translation: "I have become very fearful and I tremble" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Feeling horror is spoken of as if horror were a thing that can cover people. Alternate translation: "I feel terrible horror" or "I am extremely afraid" (See: [[rc://en/ta/man/translate/figs-metaphor]])