Authors:

Amen meaneth assuredly, namely, that I am sure that petitions of this kind are accepted by my Heavenly Father, and heard by him, because he hath commanded us, that we should pray after this manner, and hath promised that he will hear us. Amen, Amen: that is, truly, certainly, so be it.

Martin Luther, Alexander Chalmers (1857). “The Table Talk of Martin Luther”, p.102
Amen meaneth assuredly, namely, that I am sure that petitions of this kind are accepted by my Heavenly Father, and heard by him, because he hath commanded us, that we should pray after this manner, and hath promised