“the ruler.” We learn from the scope of Scripture that this ruler is the Messiah, Jesus Christ. He will have a land area set aside for himself in the Millennial Kingdom. Joshua, a type of Christ, foreshadowed this when he received a city in the Promised Land as his personal inheritance in return for his faithfulness to God (Josh. 19:49-50).
“to the west border.” The west border is the Mediterranean Sea.
“the house.” The house of God, meaning the Temple, and the sanctuary, in the temple proper, in the middle of the holy area.