Charles H. Spurgeon on Psalms 112:4

Unto the upright there ariseth light in the darkness. The great lesson taught by this simile is the connection which obtains between integrity of purpose and clearness of perception, insomuch that a duteous conformity to what is right, is generally followed up by a ready and luminous discernment of what is true. It tells us that if we have but grace to do as we ought, we shall be made to see as we ought. It is a lesson repeatedly affirmed in Scripture, and that in various places both of the Old and New Testament: "The path of the just is as the shining light, that shineth more and more unto the perfect day"; "The righteousness of the upright shall deliver them"; "Light is sown for the righteous, and gladness for the upright in heart"; or still more specifically, "To him that ordereth his conversation aright will I shew the salvation of God." —Thomas Chalmers, 1780-1847.