The psalmist speaks as if the sea were a person who could shout to God. Alternate translation: "Let it be as if the sea and everything in it were shouting" (See: [[rc://en/ta/man/translate/figs-personification]])
The psalmist speaks as if the world were a person. Alternate translation: "and let it be as if the world and those who live in it were shouting" (See: [[rc://en/ta/man/translate/figs-ellipsis]] and [[rc://en/ta/man/translate/figs-personification]])
This is a metonym for the people who live in the world. Alternate translation: "the people in the world" (See: [[rc://en/ta/man/translate/figs-metonymy]])