Thus God has made known to us, through both these prophets, in what the unceasing occupation of the blessed in heaven consists. They behold the magnificent beauty of God and praise Him on account of His majesty, power and love, and this occupation of the dwellers in heaven should also be the task of the dwellers upon earth. It is indeed the duty of mankind, and an indispensable obligation. King David acknowledged this when he said: "I will bless the Lord at all times, his praise shall be always in my mouth" (Ps. xxxiii). Therefore, our whole life and endeavor should be one uninterrupted "Glory be to the Father, and to the Son, and to the Holy Ghost." We will make this obligation the subject of our consideration. I. The happy inhabitants of heaven as they behold God in His indescribable splendor extol Him with hymns of praise. To know God and to serve Him, to glorify Him, this is the supreme end of man, not only when he is admitted to heaven, but even here on earth. God himself tells us this through the Prophet Isaias. "In order," thus He speaks, "that man should glorify me, therefore have I created him and brought him forth from nothing." We mortals as yet can not behold God as the blessed do in heaven; but we do behold Him in His works, and know Him from His revelation given us through the prophets, and through Jesus Christ, our Lord. The works through which God has revealed Himself to us are creation, redemption and sanctification. Creation is a vast book which speaks to us unceasingly of God, and it is intelligible to all. If we contemplate the magnificence of the starlit sky we must exclaim with David: "The heavens show forth the glory of God, and the firmament declareth the work of his hands" (Ps. xvlii). Yet not only the heavens, but also the earth shows us, at every step, the omnipotence of God, His wisdom and love. Mountain and valley, forest and field, river and ocean, they all remind us of God, their creator. Every flower of field and meadow is a great masterpiece, which no mortal man could create. The animal world presents still greater marvels for our consideration. The waters teeming with millions of animals of all kinds, from the smallest jellyfish to the ship-destroying monsters, the beasts of the forest, the birds of the air, they all are called into existence by God, and God has not merely called all these creatures into existence, but His providence preserves them, and not even a sparrow falls from the roof without His knowledge. But we have not yet considered the masterpiece of creation: man, the creature with an immortal soul, created according to God's own image and likeness. In man body and soul are joined together in a wonderful unity, so that man presents in himself a combination of the spiritual and material.