What's the True Name of God?

[Rose of Shushan]

Quote:I'll give you a puzzle to solve. If what I'm saying to you about the yah or Yeh sound is wrong. Would you please explain to me why the KJV gave rights over to reproduce their bible in the following format.

Here is the patience of the saints: here are they that keep the commandments of YHWH, and the faith of Yahushua.
(Rev 14:12 RKJV)

And she shall bring forth a son, and thou shalt call his name Yahushua : for he shall save his people from their sins.
(Matthew 1:21 RKJV)

What Bible version is the RKJV?