"That's wonderful, HD. Then maybe you can explain the differences in LXX and KJV version of Isa 9:6, and 9:8 for starters. Thank you."
Isa. 9:6 is the promise of Messiah and 9:8 is the promise of judgment on Israel because of its arrogance. There are no differences.
On the second thought, let me do it for you, BD: I will even outline in blue and red the words radically differ in meaning and context between LXX and KJV:
KJV: For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.
Now, verse 9.8:
KJV: The Lord sent a word into Jacob, and it hath lighted upon Israel