Shalom Lavi,I agree the tablets given to Moshe by YHWH, would have likely been created with old Hebrew. However that does not prove that YHWH spoke Hebrew to Adam, or that Adam ever spoke Hebrew, but maybe he did. If he did, I don't think it's the exact Hebrew that people use today.
I'm sure that YHWH understands all languages, and that he can communicate to anybody and anything as he desires.
According to the scriptures, if we have enough faith, then we can tell a tree what to do, and it will obey us! (Luke 17:6) But trees don't have and ears, and they don't know English. They don't recognize our own voice, however if our voice contains the power of YHWH within it, then they will understand and obey his spirit that dwells within us. If many people with their mustard seed sized faith gather together in his name [the Word OF YHWH], then I beleive they could do anything if it's also in agreement with YHWH. When they speak in his name, it will be done, because their is commanding spiritual power/authority within.
We are not dealing with flesh and blood things here, or human spoken languages. We are dealing with spiritual things, principalities, and powers of both good and evil.
YHWH's name is the ultimate power and authority above all things. I believe that all his children of any language will know his voice when he speaks, and they will also understand what he is saying to them. Even the retarded, senile,
newborn babies, and the deaf will know, hear and understand his voice.
John 10:16 And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd.
Yahshua spoke Aramaic, but the name/power of YHWH was within him, and within his voice.
Isaiah 52:6 Therefore my people shall know my name: therefore they shall know in that day that I am he that doth speak; behold, it is I.
John 14:10 Believest thou not that I am in the Father, and the Father in me. The words that I speak unto you I speak not of myself: but the Father that dwells in me, he does the works.
YHWH's voice can speak to us, through us, and within us when we are wide awake or resting.
Most everbody has experienced spiritual comminications. We speak, hear and see in our dreams, yet our physical ears, lips and eyes had no part in those comminications when we are dreaming. I sometimes wonder if we are ever spiritually testing in our dreams to resist evil?
Hebrew today isn't exactly the same pure language as it was way back then, as there are many new and handed down mixed or deluted things applied within the languages of today. I'm kind of guessing that there might not be any pure language spoken on earth today. Yahweh hears our voices, but he knows our hearts!
Col 3:16 Let the word of Messiah dwell in you richly; in all wisdom teaching and admonishing one another with psalms and hymns and spiritual songs, singing with grace in your hearts unto Yahweh.
Mabye the languages first started being confused after Adam and Eve ate the forbidden fruit, and/or for sure after the seperation of the first Babylon. I beleive there is a universal language of YHWH that everything knows inside. After we are lived away into heaven, that might be the pure language that YHWH will restore unto all of us.
Zeph: 3:8 Therefore wait ye upon me, saith YHWH, until the day that I rise up to the prey: for my determination is to gather the nations, that I may assemble the kingdoms, to pour upon them mine indignation, even all my fierce anger: for all the earth shall be devoured with the fire of my jealousy. 3:9 For then will I turn to the people a pure language, that they may all call upon the name of YHWH, to serve him with one consent.
Shalom in Yahweh,
Brother Yohanan