Genesis 1:9

And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.

1. Water initially covered the entire earth. This was perhaps because the surface of the earth was very smooth.
2. God declared that He wanted the water gathered into one place so that dry land could appear.
3. Something happened in response to God's command that caused the ocean to be formed and the dry land to appear.