1 How much avails the Word of God to us for the correction of our life, both regarding His rewards to be expected, and His punishments to be feared, let each one measure in himself; and let him put his conscience without deceit before His eyes, and not flatter himself in a danger so great: for you see that even our Lord God Himself does flatter no one: though He comforts us by promising His blessings, and by strengthening our hope; yet them that live ill and despise His word He assuredly spares not.
Let each one examine himself, while it is time, and let him see where he is, and either persevere in good, or be changed from evil. For as he says in this Psalm, not any man whatever nor any angel whatever, but, “The Lord, the God of gods, has spoken”. But in speaking, He has done what? “He has called the earth from the rising of the sun unto the going down.” He that “has called the world from the rising of the sun unto the going down,” is Our Lord and Saviour Jesus Christ, “the Word made Flesh,” in order that He might dwell in us.
Our Lord Jesus Christ then is the “God of gods;” because by Himself were all things made, and without Himself was nothing made. The Word of God, if He is God, is truly the God of gods; but whether He be God the Gospel answers, “In the beginning was the Word, and the Word was with God, and the Word was God.” And if all things were made by Himself, as He says in the sequel, then if any were made gods, by Himself were they made. For the one God was not made, and He is Himself alone truly God. But Himself the only God, Father and Son and Holy Ghost, is one God.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)