You assume that tongues and languages are two different things. They are not. Tongues mean languages and languages means tongues. The two words mean the same.
I speak in the English tongue. My granddaughter also speaks in the French tongue and the German tongue. To me German is an unknown tongue.
Proof [tongues = languages]:
Genesis 10:5 KJB - By these were the isles of the Gentiles divided in their lands; every one after his tongue, after their families, in their nations.
Genesis 11:1 KJB - And the whole earth was of one language, and of one speech.
Genesis 11:6 KJB - And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.
Genesis 11:7 KJB - Go to, let us go down, and there confound their language, that they may not understand one another's speech.
Genesis 11:9 KJB - Therefore is the name of it called Babel; because the LORD did there confound the language of all the earth: and from thence did the LORD scatter them abroad upon the face of all the earth.
Ezra 4:7 KJB - And in the days of Artaxerxes wrote Bishlam, Mithredath, Tabeel, and the rest of their companions, unto Artaxerxes king of Persia; and the writing of the letter was written in the Syrian tongue, and interpreted in the Syrian tongue.
Daniel 1:4 KJB - Children in whom was no blemish, but well favoured, and skilful in all wisdom, and cunning in knowledge, and understanding science, and such as had ability in them to stand in the king's palace, and whom they might teach the learning and the tongue of the Chaldeans.
Acts 1:19 KJB - And it was known unto all the dwellers at Jerusalem; insomuch as that field is called in their proper tongue, Aceldama, that is to say, The field of blood.
Acts 2:6 KJB - Now when this was noised abroad, the multitude came together, and were confounded, because that every man heard them speak in his own language.
Acts 2:7 KJB - And they were all amazed and marvelled, saying one to another, Behold, are not all these which speak Galilaeans?
Acts 2:8 KJB - And how hear we every man in our own tongue, wherein we were born?
Acts 2:9 KJB - Parthians, and Medes, and Elamites, and the dwellers in Mesopotamia, and in Judaea, and Cappadocia, in Pontus, and Asia,
Acts 2:10 KJB - Phrygia, and Pamphylia, in Egypt, and in the parts of Libya about Cyrene, and strangers of Rome, Jews and proselytes,
Acts 2:11 KJB - Cretes and Arabians, we do hear them speak in our tongues the wonderful works of God.
Acts 21:40 KJB - And when he had given him licence, Paul stood on the stairs, and beckoned with the hand unto the people. And when there was made a great silence, he spake unto them in the Hebrew tongue, saying,
Acts 22:2 KJB - (And when they heard that he spake in the Hebrew tongue to them, they kept the more silence: and he saith,)
Acts 26:14 KJB - And when we were all fallen to the earth, I heard a voice speaking unto me, and saying in the Hebrew tongue, Saul, Saul, why persecutest thou me? it is hard for thee to kick against the pricks.
Revelation 9:11 KJB - And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.
Revelation 16:16 KJB - And he gathered them together into a place called in the Hebrew tongue Armageddon.