Source of "God, Thou art clothed with light"

Can someone help me find a literal translation of a text from the Eastern church? John Brownlie paraphrased it as a hymn (Hymns of the Russian Church, #95), the first stanza of which is:

God, Thou art clothed with light,
As with a garment fair;
And, in Thy holy sight,
The saints Thy beauty wear;
The heavens, and all therein, express
The glory of Thy holiness.

The full hymn paraphrase can be found at
https://ccel.org/ccel/brownlie/russianhymns/russianhymns.sect5.sect5_4.h103.html

The hymn appears under the heading
Χιτϖνα μοι παρασχου φωτεινον
which must be the Greek incipit. In Browlie's collection, it appears in the Communion section.

I would would like a literal English translation of the original text, and some idea of how it is used in the Eastern liturgy.

Thanks.