Simply put, the translators making the new Bibles have based their work largely upon two old manuscripts, known as the Vaticanus and the Sinaiticus. These manuscripts disagree with the vast majority of ancient copies and even with each other. And they weaken the deity of Christ. It is foolish to choose a Bible just because it is easier to read. And single words are very important.
Many important doctrines stand or fall upon the exact wording of Scripture.
Approximations won't do. There are quotations from two prophets there, Malachi and Isaiah. If your Bible says they both came from Isaiah, it is simply wrong. Buy a new one. Back to Bible versions information page Books available from Chick on Bible versions.