light of: Psa 119:18, Mat 6:22, Mat 6:23, Mar 8:18, Act 26:18, Eph 1:17 single: Act 2:46, 2Co 1:12, 2Co 11:3, Eph 6:5, Col 3:22 but: Gen 19:11, 2Ki 6:15-20, Psa 81:12, Pro 28:22, Isa 6:10, Isa 29:10, Isa 42:19, Isa 44:18, Jer 5:21, Mar 4:12, Mar 7:22, Act 13:11, Rom 11:8-10, 2Co 4:4, 2Th 2:9-12 Reciprocal: Ecc 2:13 - light Joh 9:39 - might be