EARTH in OT usually stands for one or other of the Heb. words 'eretz and 'ad
In the beginning God created the heavens and the earth.
Then God said, "Let the waters teem with swarms of living creatures, and let birds fly above the earth in the open expanse of the heavens."
Then the LORD God formed man of dust from the ground, and breathed into his nostrils the breath of life; and man became a living being.
"O land, land, land, Hear the word of the LORD!