"Let the fields and all that is in them rejoice." The psalmist speaks as if "the fields" and the animals that live inthem have emotions like people. Alternate translation: "Let it be as if the fields themselves and all the animals that live in them are rejoicing" (See: [[rc://en/ta/man/jit/figs-personification]])
This speaks about the trees as if they were people who could shout for joy. Alternate translation: "let it be as if all the trees in the forest shout for joy" (See: [[rc://en/ta/man/jit/figs-personification]])