In modern languages, we often use the word “Amen” to mean something along the lines of “So may it be”, or “May God make it so” (by answering the prayer which we end with “Amen”).
That modern “So may it be” meaning is not something “we” invented recently. It was used that way in Jesus’ days. So that meaning is “legit”. But it is not the original meaning.
The original meaning of Amen is as a (Hebrew) “TLA” (Three Letter Acronym in modern jargon). This particular “TLA” is shorthand for Hebrew words that start with the letters Aleph, Mem, and Nun. They represent the concepts that:
God is a Faithful King”
&
“God’s Kingdom is accessed by Faith”
The verse below is Genesis 1:1.
Note the values of the 5th and 7th words (from the right). These words are Heaven, and Earth. The values are 295 and 296. The difference is 99.
395 – 296 = 99
The value 99 is Abraham’s age when he and Sarah rejuvenated.
The Hebrew (Old Testamenent Judaism) “Amen” has the value 91. It almost gets us all the way from Earth to Heaven. The New Testament (Greek) Amen “makes it all the way”. It bridges the gap between Earth and Heaven. It adds 8 more to our Amen. Jesus rose on the 8th Day, i.e. on the first day of the new week. The Sephirah of Binah, strongly associated with Binah (Understanding) and Faith, especially Female Faith, is the 8th Sephirah above our earthly plane.
Amen in Hebrew
Letter Values 1 40 50
Word Value 91