Rashi on Psalms
but in darkness Heb. בצלם, in darkness. Dunash explained it as an expression of darkness (צלמות) (Teshuvoth Dunash p. 89), but Menachem (p. 150) explained it as an actual image, as (in Gen. 9: 6) “for in the image of God He made man.” His view is impossible, however.