John the Apostle
Revelation 7:12ESV·traditional attribution

saying, “Amen! Blessing and glory and wisdom and thanksgiving and honor and power and might be to our God forever and ever! Amen.”

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. An account of the restraint laid upon the winds. By these winds we suppose are meant those errors and corruptions in religion which would occasion a great deal of trouble and mischief to the church of God.

Commenting on Revelation 7:1-12

John Gill Reformed Baptist @doctorgill

Saying, Amen,.... As approving and confirming what the great multitude of men had said in Rev 7:10; in ascribing the glory of salvation to God, and the Lamb: the angels, though they have no part in it themselves, yet highly approve of it as right and just, that men should give the glory of it where it is due.

Albert Barnes Presbyterian @notesbybarnes

Verse 12 Saying, Amen. . The word Amen here is a word strongly affirming the truth of what is said, or expressing hearty assent to it. It may be uttered, as expressing this, either in the beginning or end of a sentence. Thus wills are commonly commenced, "In the name of God, Amen." Blessings and glory, etc. Substantially the same ascription of praise occurs in . .