Jamieson, Fausset & Brown

his countenance--literally, "their faces," a use of the plural applied to God, as in Gen 1:26; Gen 3:22; Gen 11:7; Isa 6:8, &c., denoting the fulness of His perfections, or more probably originating in a reference to the trinity of persons. "Faces" is used as "eyes" (Psa 11:4), expressing here God's complacency towards the upright (compare Psa 34:15-16). Next: Psalms Chapter 12