Full of happiness
This light which fills him who has a single eye implies, thirdly, happiness as well as holiness. Surely light is sweet, and a pleasant thing it is to see the sun (Ecclesiastes 11:7). But how much more to see the Sun of Righteousness continually shining upon the soul? And if there is any consolation in Christ, if any comfort of love, if any peace that passes all understanding, if any rejoicing in hope of the glory of God (Philippians 4:4-7), they all belong to him whose eye is single. Thus is his whole body full of light. He walks in the light as God is in the light, rejoicing evermore, praying without ceasing, and in everything giving thanks (1 Thessalonians 5:16-18), enjoying whatever is the will of God concerning him in Christ Jesus.
1771 text
5. This light which fills him who has a single eye, implies, thirdly, happiness as well as holiness. Surely light is sweet, and a pleasant thing it is to see the sun. But how much more to see the Sun of Righteousness, continually shining upon the soul? And if there be any consolation in Christ, if any comfort of love, if any peace that passeth all understanding, if any rejoicing in hope of the glory of God, they all belong to him whose eye is single. Thus is his whole body full of light. He walketh in the light as God is in the light, rejoicing evermore, praying without ceasing, and in every thing giving thanks, enjoying whatever is the will of God concerning him in Christ Jesus.