Amen affirms the validity of what has been said and was often used in the liturgical settings. Most notable is how the angels and saints in heaven cry out “Amen” as they sing their part in the chorus praising God in the heavenly liturgy. This praise of the angels and saints in heaven is echoed on earth by the priest at every Mass when he says:
Through him, and with him and in him, O God, almighty Father, in unity of the Holy Spirit, all glory and honor is yours, forever and ever.
The participants then respond like the angels, eager to join in this praise of God. They cry out “Amen” In it, they join all the great heroes in salvation history and all the angels and saints in heaven in this chorus of unending praise.