What is the meaning of 1 Corinthians 14:16?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Otherwise, if you speak a blessing in spirit, how can someone who is uninstructed say “Amen” to your thanksgiving, since he does not know what you are saying?

Berean Standard Bible (BSB)

Otherwise if you bless with the spirit, how will he who fills the place of the unlearned say the “Amen” at your giving of thanks, seeing he doesn’t know what you say?

World English Bible (WEB)

Else{G1893} when{G1437} thou shalt bless{G2127}{(G5661)} with the spirit{G4151}, how{G4459} shall he that occupieth{G378}{(G5723)} the room{G5117} of the unlearned{G2399} say{G2046}{(G5692)} Amen{G281} at{G1909} thy{G4674} giving of thanks{G2169}, seeing{G1894} he understandeth{G1492}{(G5758)} not{G3756} what{G5101} thou sayest{G3004}{(G5719)}?

Strong's King James

(16) Since if you bless in ruach-spirit how will the one who fills the place of the unskilled outsider say, "Amen" at your thankfulness since he doesn't know what you're saying.

The F.O.G*

[16] If you're praising יהוה only in the spirit, how can someone who doesn't understand say "Amen" to your thanksgiving? They can't agree with what they don't comprehend.

The F.O.G Paraphrase

since, if thou mayest bless with the spirit, he who is filling the place of the unlearned, how shall he say the Amen at thy giving of thanks, since what thou dost say he hath not known?

Young's Literal Translation