This is a coronation hymn for Jehovah as sovereign God over all Creation. It sounds exactly like what you might hear when a parade makes a ceremonial march before the ruler from the gate of the capital to the doors of the palace. In this case, the ritual would be marching the Ark of Covenant as the symbolic throne of God up to the Temple.
Because He is rule is all Creation, let all of the earth rejoice at the celebration of His coronation, all the way to very ends of human occupation.
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