“Amen “Is derived from the reflexive form of a verb meaning “to be firm,” or “to prop.” It occurs twice as a noun in “Isaiah 65:16 That he who blesses himself in the earth shall bless himself in the God of truth; and he that swear in the earth shall swear by the God of truth; because the former troubles are forgotten, and because they are hid from mine eyes.” Amen means So Be It! Amen is spoken to express solemn ratification or agreement. Found in the Hebrew Bible, Amen is derived from the Hebrew āmēn, which means “certainty,” “truth,” and “verily. “It can be expressed in endless ways, from a soft whisper to a joyous shout. Either way, Amen has nothing to do with the words man or men or their origins. Egyptian mythology, Amen, or Amon was a deity represented by a ram, the god of life and reproduction. It’s just a coincidence that the word amen resembles this deity’s name. The ancient Egyptian god has no relationship to the Hebrew declaration of affirmation.
It reads in Revelation 3:14 NIV, “To the angel of the church in Laodicea write: These are the words of the Amen, the faithful and true witness, the ruler of God’s creation.