Bible Encyclopedias
Brightness

International Standard Bible Encyclopedia

brı̄t´nes : Used by the King James Version in Hebrews 1:3 for "effulgence of his glory," as in the Revised Version (British and American) and the American Standard Revised Version. The Greek apaúgasma may mean either "reflection" or "radiation." Patristic usage favors the latter; compare The Wisdom of Solomon 7:26; also the Nicene Creed: "Light of Light," i.e. the Son not only manifests the Father, but is of the same substance. "What emanates from light, must have the nature of light" (Delitzsch).

Bibliography Information
Orr, James, M.A., D.D. General Editor. Entry for 'Brightness'. International Standard Bible Encyclopedia. https://www.studylight.org/​encyclopedias/​eng/​isb/​b/brightness.html. 1915.