Amein!

Strong’s Hebrew Lexicon:

Faith: 530 ’emuwnah em-oo-naw’); or (shortened) >emunah {em-oo-naw’ feminine of 529; literally firmness; figuratively security; morally fidelity:–faith(-ful, -ly, -ness, (man)), set office, stability, steady, truly, truth, verily.

Amen (Amein): 543 ‘amen aw-mane’ from 539; sure; abstract, faithfulness; adverb, truly:–Amen, so be it, truth.