'Sea's' in the Bible

So that day the Lord gave Israel salvation from the hands of the Egyptians; and Israel saw the Egyptians dead on the sea's edge.

Gilead was living over Jordan; and Dan was waiting in his ships; Asher kept in his place by the sea's edge, living by his inlets.

"Have you entered into [the] sea's sources? Or have you walked around in [the] recesses of the deep?

The many nations massing together are as good as dead, those who make a commotion as loud as the roaring of the sea's waves. The people making such an uproar are as good as dead, those who make an uproar as loud as the roaring of powerful waves.

Thus says the Lord,Who gives the sun for light by dayAnd the fixed order of the moon and of the stars for light by night,Who stirs up the sea’s roaring billows or stills the waves when they roar;The Lord of hosts is His name: