And one cried unto another, and said, Holy, holy, is the Lord of hosts: the whole earth is full of His glory.@Isaiah 6:3

Richard Mant, Ancient Hymns 1837. This is part of the longer hymn Bright the Vision That Delighted.

Ebenezer Thomas J. Williams, in Llaw lyfr Moliant, 1890 (🔊 pdf nwc).

Round the Lord in glory seated,
Cherubim and seraphim
Filled His temple, and repeated
Each to each the alternate hymn:
Lord, Thy glory fills the heaven,
Earth is with its fullness stored;
Unto Thee be glory given,
Holy, holy, holy Lord!

Heav’n is still with glory ringing,
Earth takes up the angels’ cry,
Holy, holy, holy, singing,
Lord of Hosts, the Lord most high.;
With His seraph train before Him,
With His holy Church below,
Thus conspire we to adore him,
Bid we thus our anthem flow.

Lord, Thy glory fills the heaven,
Earth is with its fullness stored;
Unto Thee be glory given,
Holy, holy, holy Lord!

Thus Thy glorious name confessing,
We adopt thine angels’ cry,
Holy, holy, holy, blessing
Thee, the Lord of Hosts most high.