A sort of paraphrase, almost verbatim of Psalm 48 v.1-2.
The video includes v.10-12. A short song/chorus.
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Great is the Lord
And greatly to be prais-ed
In the city of our God {Jerusalem}
In the mountain of His holiness {Mount Zion, one of the mounts surrounding Jerusalem}
Beautiful for sit-u-a-tion
The joy of the whole earth
Is Mount Zion on the sides of the north {though this mount is south of Jerusalem, it seems}
The city of the great Ki-i-ing
Is Mount Zion on the sides of the north
The city of the great King