Luke 1:79

To shine upon

(επιφανα). First aorist active infinitive of επιφαινω (liquid verb). An old verb to give light, to shine upon, like the sun or stars. See also Acts 27:20; Titus 2:11; Titus 3:4.The shadow of death

(σκια θανατου). See Psalms 107:10, where darkness and shadow of death are combined as here. Cf. also Isaiah 9:1. See on Matthew 4:16. To guide (του κατευθυνα). Genitive of the articular infinitive of purpose. The light will enable them in the dark to see how to walk in a straight path that leads to "the way of peace." We are still on that road, but so many stumble for lack of light, men and nations.