That is correct.
Hebrew did not disappear.
But it didn't show up until after the Babel incident.
Prior to the Babel incident ...
Genesis 11:1 And the whole earth was of one language, and of one speech.
I like to think that "one language and one speech" is Jacobean English.
There are books in Heaven.
Revelation 20:12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
IF those books are the 66 books of the King James Bible, which, on Earth, is God's seventh and final Translation,* then I submit that God speaks a heavenly language, and that that heavenly language is what we call "Jacobean English."
* Translation Sequence:
1. AV330 Gothic Version
2. AV700 Anglo-Saxon Version
3. AV1389 Wycliffe
4. AV1525 Tyndale
5. AV1560 Geneva Bible
6. AV1568 Bishop's Bible
7. AV1611 King James Bible
Psalm 12:6 The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times.
7 Thou shalt keep them, O LORD, thou shalt preserve them from this generation for ever.
Matthew 24:35 Heaven and earth shall pass away, but my words shall not pass away.
Deuteronomy 32:4a He is the Rock, his work is perfect:
1 Thessalonians 2:13 For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe.