Augustine of Hippo
During the Psalm reading, you heard that the impoverished and the afflicted are called to cry out to God in this life (cf. Ps. 73:21). This cry, as has been emphasized frequently, is not the voice of a single individual, yet it is unified in one: it is not singular, for there are numerous believers, many kernels amidst the sorrowful chaff dispersed across the entire world; yet it is one, because we are all part of Christ’s body, united in that singular Body (cf. 1 Cor. 12:27). Hence, this destitute and sorrowful group cannot find joy in the world: both their inner anguish and their hidden joy are only visible to the One who hears the cries and rewards those who are filled with hope.
They were ashamed due to their arrogance. The downtrodden and defenseless individual shall exalt Your name. Behold, brethren, how delightful poverty can be: recognize that the poor and vulnerable are under God's care, particularly the poor in spirit, for theirs is the kingdom of heaven. (Matthew 5:3) Who are the poor in spirit? They are the humble who tremble at the word of God, who acknowledge their sins, and do not depend on their own merits or righteousness. Who are the poor in spirit? Those who, when they perform good deeds, give glory to God; and when they commit wrongs, they hold themselves accountable. Upon whom shall My Spirit rest, as the Prophet declares, but on the one who is humble, gentle, and reverent towards My words? (Isaiah 66:2) Thus, Asaph understood that he was no longer tethered to earthly concerns; now he was free from the temporal promises of the Old Testament.