I also shook out the fold of my garment and said, “So may God shake out everyone from house and from property who does not perform this promise. Thus may they be shaken out and emptied.” And all the assembly said, “Amen,” and praised the Lord. And the people did as they had promised.
Then Ezra blessed the Lord, the great God, and all the people answered, “Amen, Amen,” lifting up their hands. Then they bowed their heads and worshiped the Lord with their faces to the ground.
and the prophet Jeremiah said, “Amen! May the Lord do so; may the Lord fulfill the words that you have prophesied and bring back to this place from Babylon the vessels of the house of the Lord and all the exiles.
Otherwise, if you say a blessing with the spirit, how can anyone in the position of an outsider say the “Amen” to your thanksgiving, since the outsider does not know what you are saying?
Then I heard what seemed to be the voice of a great multitude, like the sound of many waters and like the sound of mighty thunderpeals, crying out, “Hallelujah! For the Lord God the Almighty reigns.