4 “And I will confess to Your Name in Your mercy and Your truth.”...These also which You have given to me, do I according to my power give to You in return: mercy, in aiding others; truth, in judging. By these God aids us, by these we win God's favour. Rightly, therefore, “All the ways of the Lord are mercy and truth.” No other ways are there whereby He can come to us, no other whereby we can come to Him. “For You have magnified Your holy Name over everything.” What sort of thanksgiving is this, brethren? He has magnified His holy Name over Abraham. Of Abraham was born Isaac; over that house God was magnified; then Jacob; God was magnified, who said, “I am the God of Abraham, and the God of Isaac, and the God of Jacob.” Then came his twelve sons. The name of the Lord was magnified over Israel. Then came the Virgin Mary. Then Christ our Lord, “dying for our sins, rising again for our justification,” filling the faithful with His Holy Spirit, sending forth men to proclaim throughout the Gentiles, “Repent ye,” etc. Behold, “He has magnified His holy Name above all things.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)