Psalm 97. Dominus regnavit.
The LORD is King, the earth may be glad thereof; * yea, the multitude of the isles may be glad thereof.
Psalm 99. Dominus regnavit.
The LORD is King, be the people never so impatient; * he sitteth between the Cherubim, be the earth never so unquiet.
From Morning Prayer for Tuesday, November 18, 2008, in the Book of Divine Worship
Also a clue in the Dorothy Sayers mystery, The Nine Tailors.