What language will the inscriptions be written in <Rev 21: 10-14; 22-23>?

Question

"... with twelve gates where twelve angels were stationed
and on which names were inscribed,
the names of the twelve tribes of the Israelites.
There were three gates facing east,
three north, three south, and three west.
The wall of the city had twelve courses of stones as its foundation,
on which were inscribed the twelve names
of the twelve apostles of the Lamb."

Answer 1

Why assume that it's literal? Most of Revelation is symbolic, and looking for literal names misses the point of the book.

The Old Testament Church is symbolized by the names of the twelve tribes of Israel. This formed the backbone and preparation for Christ, and is indeed the Assembly of God ("church" means "assembly"). When Christ inaugurated the New Covenant, He did so by twelve Apostles. With these men as the foundation stones, Christ built His Church (in the New Covenant). Thus, the people of God after the Resurrection encompass all believers, both old and new covenants. The city in Revelation is, in truth, the Church of God.

If you go looking for literal details and trying to figure out languages and whatnot, then you miss greater points such as this. There may be no stones at all, and the text here purely symbolic.

Answer 2

Hebrew, because the names of the tribes were Hebraic to begin with.

Answer 3

Hebrew I suppose.

Answer 4

Pig Latin