1910 New Catholic Dictionary
O Blest Creator of the Light!
Hymn for Vespers on Monday. It was written probably by Pope Saint Gregory the Great (540-604). Of the 21 translations, the English title given is by E. Caswall.
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Entry for 'O Blest Creator of the Light!'. 1910 New Catholic Dictionary. https://www.studylight.org/dictionaries/eng/ncd/o/o-blest-creator-of-the-light.html. 1910.