John Chrysostom — as excerpted in the Catena Aurea on John 1:5

“(Hom. v. [iv.] c. 3)l. Life having come to us, the empire of death is dissolved; a light having shone upon us, there is darkness no longer: but there remaineth ever a life which death, a light which darkness cannot overcome. Whence he continues, And the light shineth in darkness: by darkness meaning death and error, for sensible light does not shine in darkness, but darkness must be removed first; whereas the preaching of Christ shone forth amidst the reign of error, and caused it to disappear, and Christ by dying changed death into life, so overcoming it, that, those who were already in its grasp, were brought back again. Forasmuch then as neither death nor error hath overcome his light, which is every where conspicuous, shining forth by its own strength; therefore he adds, And the darkness comprehended it notm.”