'Regions' in the Bible

This is the land that remains: all the regions of the Philistines and all those of the Geshurites;

“Listen to Me in silence, you islands and coastlands,And let the nations gain their strength;Let them come near, then let them speak;Let us come together for judgment [and decide the issue between us concerning the enemy from the east].

“He will not be disheartened or crushed [in spirit];[He will persevere] until He has established justice on the earth;And the coastlands will wait expectantly for His law.”

Sing to the Lord a new song,Sing His praise from the end of the earth!You who go down to the sea, and all that is in it,You islands and coastlands, and those who inhabit them [sing His praise]!

Let them give glory to the LordAnd declare His praise in the islands and coastlands.