There is some hypothesis as to whether there is such a thing as a “heavenly language.” Is there a language unknown on earth but spoken fluently in heaven? If so, is it possible for someone to learn to speak this mysterious/cryptic language? Is it possibly a gift of the Holy Spirit?
For many think that if they use any Idiome, it is Hebrew, because that was the first of all, and came from heaven, and was before the confusion of languages in Babylon, in which the Law was given by God the Father, and the Gospel was preached by Christ the Son, and so many prophesis were given to the Prophets by the Holy Spirit.
Yet, a language will be spoken in heaven, and if we accept that the multiple languages we experience on earth are all imperfect representations of reality, none of them can be the language we will speak in that perfect place.
Although the Bible does not address this directly, there are three passages that imply both the use of language and a significant improvement upon it.
".....You shall be called by a new name, Which the mouth of the Lord will name".
Isa. 62:2 NKJV
“....To him who overcomes I will give .... him a white stone, and on the stone a new name written which no one knows except him who receives it". Rev. 2:17 NKJV
"He who overcomes, I will make him a pillar in the temple of My God.... And I will write on him My new name".
Rev. 3:12 NKJV
Each of these passages indicates a "new" naming system, and a very special one at that.
For me, I think, the creator of multiple languages can understand it and able to reply us. God is omnipotent, He knows what to expose to His people and what not. Some times God does it with intention. If there is not a separate language in heaven, not to worry, God still knows what you want to express or say.