In biblical literature, the term "coast" often refers to the boundary or border of a land, particularly where it meets a body of water such as a sea or ocean. The concept of the coast is significant in the Bible, as it frequently denotes the geographical and territorial limits of the ancient Near Eastern peoples, including the Israelites.

Biblical References:

1. Territorial Boundaries:
The coast is often mentioned in the context of defining the territorial boundaries of the tribes of Israel. For example, in the division of the Promised Land, the coastlines are used to demarcate the inheritance of certain tribes. In Joshua 19:29, the boundary of the tribe of Asher is described: "Then the border turned to Ramah and to the fortified city of Tyre, and turned to Hosah, and it ended at the sea by the region of Achzib."

2. Prophetic Writings:
The coast is also referenced in prophetic writings, where it can symbolize the reach of God's judgment or blessing. In Zephaniah 2:5-6, the prophet declares, "Woe to the inhabitants of the seacoast, the nation of the Cherethites! The word of the LORD is against you, O Canaan, land of the Philistines: 'I will destroy you, and no inhabitant will be left.' So the seacoast will become pastures, with wells for shepherds and folds for sheep."

3. Symbol of Gentile Nations:
In some instances, the coast represents the Gentile nations or distant lands. Isaiah 11:11 speaks of the Lord gathering His people from various regions, including the coastlands: "On that day the Lord will extend His hand a second time to recover the remnant of His people from Assyria, from Egypt, from Pathros, from Cush, from Elam, from Shinar, from Hamath, and from the islands of the sea."

4. New Testament Context:
In the New Testament, the coastlines continue to play a role in the narrative of the early church. Jesus' ministry often took Him to coastal regions, such as Tyre and Sidon, where He performed miracles and taught the people. In Matthew 15:21, it is recorded, "Leaving that place, Jesus withdrew to the district of Tyre and Sidon."

Cultural and Historical Significance:

The coastlines of the ancient Near East were crucial for trade, travel, and cultural exchange. Coastal cities like Tyre, Sidon, and Joppa were significant centers of commerce and interaction between different peoples and cultures. These regions were often more cosmopolitan and exposed to various influences, which sometimes led to tensions with the more insular inland communities.

Theological Implications:

Theologically, the coast can symbolize the boundary between the known and the unknown, the familiar and the foreign. It represents the edge of the land given by God to His people and serves as a reminder of His sovereignty over all creation, including the seas. The coastlines in biblical narratives often serve as a backdrop for God's interactions with both His chosen people and the nations beyond, highlighting His universal dominion and the expansive reach of His covenant promises.