Prophecy and Tongues

1 Corinthians 14:11

In 9 translations

BSB: If, then, I do not know the meaning of someone’s language, I am a foreigner to the speaker, and he is a foreigner to me.Literally a barbarian; twice in this verse
KJV: Therefore if I know not the meaning of the voice, I shall be unto him that speaketh a barbarian, and he that speaketh shall be a barbarian unto me.
WEB: If then I don’t know the meaning of the language, I would be to him who speaks a foreigner, and he who speaks would be a foreigner to me.
ASV: If then I know not the meaning of the voice, I shall be to him that speaketh a barbarian, and he that speaketh will be a barbarian unto me.
LSV: If, then, I do not know the power of the voice, I will be a foreigner to him who is speaking, and he who is speaking is a foreigner to me;
YLT: if, then, I do not know the power of the voice, I shall be to him who is speaking a foreigner, and he who is speaking, is to me a foreigner;
DBY: If therefore I do not know the power of the sound, I shall be to him that speaks a barbarian, and he that speaks a barbarian for me.
DRC: If then I know not the power of the voice, I shall be to him to whom I speak a barbarian; and he that speaketh, a barbarian to me.
GNV: Except I know then the power of ye voyce, I shall be vnto him that speaketh a barbarian, and he that speaketh, shalbe a barbarian vnto me.

Words in brackets are English the glossers added; the Greek has no word for them, and they can carry a choice of tense or meaning.

SBLGNT: ἐὰν οὖν μὴ εἰδῶ τὴν δύναμιν τῆς φωνῆς, ἔσομαι τῷ λαλοῦντι βάρβαρος καὶ ὁ λαλῶν ἐν ἐμοὶ βάρβαρος.
RP2018: Ἐὰν οὖν μὴ εἰδῶ τὴν δύναμιν τῆς φωνῆς, ἔσομαι τῷ λαλοῦντι βάρβαρος, καὶ ὁ λαλῶν ἐν ἐμοὶ βάρβαρος.
TR-Boyd: Ἐὰν οὖν μὴ εἰδῶ τὴν δύναμιν τῆς φωνῆς, ἔσομαι τῷ λαλοῦντι βάρβαρος, καὶ ὁ λαλῶν ἐν ἐμοὶ βάρβαρος.
SCR1894: εαν ουν μη ειδω την δυναμιν της φωνης εσομαι τω λαλουντι βαρβαρος και ο λαλων εν εμοι βαρβαρος

From public-domain Bible dictionaries and topical indexes (1884–1915).

Acts 28:2The islanders showed us extraordinary kindness. They kindled a fire and welcomed all of us because it was raining and cold.
1 Corinthians 14:21It is written in the Law: “By strange tongues and foreign lips I will speak to this people, but even then they will not listen to Me, says the Lord.”
Romans 1:14I am obligated both to Greeks and non-Greeks, both to the wise and the foolish.
Acts 28:4When the islanders saw the creature hanging from his hand, they said to one another, “Surely this man is a murderer. Although he was saved from the sea, Justice has not allowed him to live.”
Colossians 3:11Here there is no Greek or Jew, circumcised or uncircumcised, barbarian, Scythian, slave, or free, but Christ is all and is in all.

From the OpenBible.info cross-reference set (votes from readers; not every link is a quotation or allusion).