[1 Corinthians 13:1 KJV] "Though I speak with the tongues of men and of angels, and have not charity, I am become [as] sounding brass, or a tinkling cymbal."
Look closely at the above verse, Paul could well be saying the tongues of men and of angels are a common language. The common language of both men and of angels.
I will examine some scriptures to see if this is a peculiar unique language.
[Daniel 8:16 KJV] "And I heard a man's voice between [the banks of] Ulai, which called, and said, Gabriel, make this [man] to understand the vision."
[Daniel 8:17 KJV] "So he came near where I stood: and when he came, I was afraid, and fell upon my face: but he said unto me, Understand, O son of man: for at the time of the end [shall be] the vision."********** Gabriel was an angel. When he spoke to Daniel he heard Gabriel speak with a man's voice Daniel fully comprehended what Gabriel said.
[Revelation 4:8 KJV] "And the four beasts had each of them six wings about [him]; and [they were] full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come." ************ These seraphims speak in understandable words
[Matthew 28:5 KJV] "And the angel answered and said unto the women, Fear not ye: for I know that ye seek Jesus, which was crucified."
[Matthew 28:6 KJV] "He is not here: for he is risen, as he said. Come, see the place where the Lord lay." *********** The angel spoke words that could be understood by the women at the empty tomb.
[2 Corinthians 12:4 KJV] "How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter." ************ Paul could understand the words spoken to him he just couldn't repeat them. He wouldn't have been able to utter them if he didn't understand them.
From these verses it can be determined that we have no basis to think they speak in an unintelligible angelic language. If they do, I don't have knowledge of it from scripture.
Look closely at the above verse, Paul could well be saying the tongues of men and of angels are a common language. The common language of both men and of angels.
I will examine some scriptures to see if this is a peculiar unique language.
[Daniel 8:16 KJV] "And I heard a man's voice between [the banks of] Ulai, which called, and said, Gabriel, make this [man] to understand the vision."
[Daniel 8:17 KJV] "So he came near where I stood: and when he came, I was afraid, and fell upon my face: but he said unto me, Understand, O son of man: for at the time of the end [shall be] the vision."********** Gabriel was an angel. When he spoke to Daniel he heard Gabriel speak with a man's voice Daniel fully comprehended what Gabriel said.
[Revelation 4:8 KJV] "And the four beasts had each of them six wings about [him]; and [they were] full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come." ************ These seraphims speak in understandable words
[Matthew 28:5 KJV] "And the angel answered and said unto the women, Fear not ye: for I know that ye seek Jesus, which was crucified."
[Matthew 28:6 KJV] "He is not here: for he is risen, as he said. Come, see the place where the Lord lay." *********** The angel spoke words that could be understood by the women at the empty tomb.
[2 Corinthians 12:4 KJV] "How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter." ************ Paul could understand the words spoken to him he just couldn't repeat them. He wouldn't have been able to utter them if he didn't understand them.
From these verses it can be determined that we have no basis to think they speak in an unintelligible angelic language. If they do, I don't have knowledge of it from scripture.