From the early Church Fathers to now.
“Bless the Lord, all ye his angels: you that are mighty in strength, and execute his word, hearkening to the voice of his orders.”
“"Your will be done on earth as in heaven." God's divine and blessed angels do the will of God, as David said in the psalm, "Bless the Lord, all his angels, mighty in strength, that do his pleasure." So then in effect this is what you mean when you pray, "as in the angels your will is done, so likewise be it done on earth by human beings, O Lord."”
“Under "thrones" [Paul] includes the cherubim, giving them this Greek name, as more intelligible than the Hebrew name for them. He knew that "God sits upon the cherubim," and so he calls these powers the thrones of him who sits on them. In the same way there are included in the list of Isaiah's seraphim, by whom the mystery of the Trinity was clearly proclaimed, when they uttered that marvelous cry "holy," being awestruck with the beauty in each person of the Trinity. They are named under the title of "powers" both by the great Paul and by the prophet David—the latter says, "Bless you the Lord all you his powers, you ministers of his that do his pleasure," and Isaiah instead of saying "Bless you" has written the very words of their blessing, "Holy, holy, holy, Lord God of hosts: the whole earth is full of his glory," and he has revealed by what one of the seraphim did [to him] that these powers are ministers that do God's pleasure, effecting the "purging of sin" according to the will of him who sent them: for this is the ministry of these spiritual beings, namely, to be sent forth for the salvation of those who are being saved.”
“"Bless ye the Lord, ye Angels of His, ye that are mighty in strength: ye that fulfil His word" (ver. 20). By the word of God, then, thou art not righteous, nor faithful, unless when thou dost it. "Ye that are mighty in strength, ye that fulfil His commandment, and hearken unto the voice of His words."”
“But these bodies are moved by the invisible Powers in an orderly and rational manner according to the will of God, these Powers having received this as a law, according to what is written in David: Bless the Lord, all ye his angels, ye mighty in strength, that fulfil his word, hearkening unto the voice of his word. Bless the Lord all ye his hosts, ye ministers of his that do his pleasure. To Him be glory for ever and ever, Amen!”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.