If thy whole body therefore be full of light,.... That is, if the whole soul, as the Ethiopic version reads, be full of Gospel light, through the illuminating influences of the blessed Spirit accompanying the word: having no part dark; every power and faculty of the soul being affected with it, and influenced by it, though, as yet, the light and knowledge of evangelical things is not perfect in any: the whole shall be full of light, as when the bright shining of a candle doth give thee light; the whole soul shall be as full of light and joy, which the Gospel always brings with it, as a room is full of light, when a candle is lighted, and shines brightly, and burns clearly in it.