Such a choice is the only rational one. It is the choice of supreme good, correspondent to man's deepest needs, and lasting as his being. Therefore the psalmist vindicates his preference, and encourages himself in it, by the thoughts in ver. 11, which he introduces with "For." Because God is what He is, and gives what He gives, it is the highest wisdom to take Him for our true good, and never to let Him go. He is "sun and shield." This is the only place in which He is directly called a sun, though the idea conveyed is common. He is "the master light of all our seeing," the fountain of warmth, illumination, and life. His beams are too bright for human eyes to gaze on, but their effluence is the joy of creation. They who look to Him "shall not walk in darkness, but shall have the light of life." What folly to choose darkness rather than light, and, when that Sun is high in the heavens, ready to flood our hearts with its beams, to prefer to house ourselves in gloomy caverns of our own sad thoughts and evil doings! Another reason for the psalmist's choice is that God is a shield. (Compare ver. 9.) Who that knows the dangers and foes that cluster thick round every life can wisely refuse to shelter behind that ample and impenetrable buckler? It is madness to stand in the open field, with arrows whizzing invisible all round, when one step, one heartfelt desire, would place that sure defence between us and every peril. God being such, "grace and glory" will flow from Him to those who seek Him. These two are given simultaneously, not, as sometimes supposed, in succession, as though grace were the sum of gifts for earth, and glory the all-comprehending expression for the higher bestowments of heaven. The psalmist thinks that both are possessed here. _Grace_ is the sum of God's gifts, coming from His loving regard to His sinful and inferior creatures. _Glory_ is the reflection of His own lustrous perfection, which irradiates lives that are turned to Him, and makes them shine, as a poor piece of broken pottery will, when the sunlight falls on it. Since God is the sum of all good, to possess Him is to possess it all. The one gift unfolds into all things lovely and needful. It is the raw material, as it were, out of which can be shaped, according to transient and multiform needs, everything that can be desired or can bless a soul.