Which preposition to use with or

of Occurrences 1%

Strange scenethe great shadowy forest, the distant mist-enfolded hills, the faintly flushing morning sky, the faint splash of a little mountain stream breaking the brooding stillness, and the small boy with intent, inspired face pouring out his very heart in that wonderful invocation: "Hail, holy light, offspring of Heaven, Firstborn Or of the Eternal, co-eternal beam, May I express thee Unblamed?

Which preposition to use with  or