"Sea" is from Old Latin: "great quantity," "space," "great collection of water."

"Sea" is an image of the depth, breadth, abundance of the Wisdom of God's Word, the great collection of spiritual knowledge expressed in the Scriptures of the Prophets, Moses, and in Christ's teaching of the Will of God.

Negative Meaning.

"Sea" is from the root - "mer," expressing the meanings, "to shimmer," "to sway," "to wobble," i.e., that which is impermanent, shaky, shaky, having no firm foundation.

"The sea" is a symbol of the multitude of nations in a state of constant moral, spiritual, religious, political and other unrest, turbulence, instability, changeability, due to their rejection, violation of God's Will, His Commandments.

 "Sea" is also a symbol of the shakiness of social, economic political, ideological foundations of society, its various pernicious ideologies, teachings, knowledge (religious, economic, political, ethical, moral, etc.), philosophies of various directions.