This psalm is a song that teaches people. Parallelism is common in Hebrew poetry. (See: [[rc://en/ta/man/translate/writing-poetry]] and [[rc://en/ta/man/translate/figs-parallelism]])
Here the word "earth" refers to the people who live on the earth. Alternate translation: "called all people" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This phrase refers to the directions east, where the sun rises, and west, where the sun sets. The writer uses these two extremes to represent everywhere on earth. Alternate translation: "everywhere on earth" (See: [[rc://en/ta/man/translate/figs-merism]])