Yahweh uses this question to emphasize that the people are extremely foolish because they do not fear Yahweh. Alternate translation: "It is foolish that you do not fear me ... face!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
The trembling would be because of fear, and being "before my face" represents being aware of who God is. Alternate translation: "or shake with fear because of me" (See: [[rc://en/ta/man/translate/figs-explicit]] and [[rc://en/ta/man/translate/figs-metonymy]])
God speaks of the ocean not going past the border of sand as if the border were a law, and as if the ocean were a person who obeys the law. Alternate translation: "an everlasting limit that it cannot cross" (See: [[rc://en/ta/man/translate/figs-metaphor]])
"the ocean does not violate my decree." God speaks of ocean not going past the border of sand as if the border were a law, and as if the ocean were a person who obeys the law. Alternate translation: "it does not succeed in going past the border" (See: [[rc://en/ta/man/translate/figs-metaphor]])