What you just said above contradicts the facts that the NKJV uses the Greek texts from Wescott & Hort.
Example of changes the NKJV makes, which shows it is more in line with the modern Bible versions that use Wescott and Hort's Greek translation from corrupt Greek texts:
Genesis 2:18: The NKJV ought to make Hillary Clinton proud: "And the Lord God said, It is not good that man should be alone; I will make a helper COMPARABLE TO HIM"
Genesis 22:8: One of the greatest verses in the Bible proclaiming that Jesus Christ was God in the flesh: "God will provide himself a lamb for a burnt offering:" The NKJV adds that little word "for": "God will provide for Himself the lamb for a burnt offering" And destroys the wonderful promise! Where'd they get their little "for"? From the NASV!
Genesis 24:47: The "old" KJV reads: "I put the earring upon her face". But the NKJV has different plans for beautiful Rebekah: "I put the nose ring on her nose". Where did it get the ridiculous idea to "cannibalize" Rebekah? Just take a peek at the NIV, NASV, RSV, NRSV!
Ezra 8:36: The KJV reads, "And they delivered the king's commissions unto the king's lieutenants. . ." The "much clearer" NKJV reads, "And they delivered the king's orders to the king's satraps. . ." Who in the world thinks "satraps" is "much clearer" than lieutenants? The NIV, NASV, NRSV, RSV - they do! They put in the same "much clearer" word!
Psalms 109:6: removes "Satan". (NIV, NASV, RSV, NRSV).
Matthew 7:14: change "narrow is the way" to "difficult is the way". There's nothing "difficult" about the salvation of Jesus Christ! Jesus says in Matt. 11:30, "For my yoke is EASY, and my burden is light." THE EXACT OPPOSITE! Boy, you talk about a contradiction!
Matthew 12:40: change "whale" to "fish" (ditto NIV) I don't guess it matters (what's the truth got to do with it?), the Greek word used in Matthew 12:40 is ketos. The scientific study of whales just happens to be - CETOLOGY - from the Greek ketos for whale and logos for study! The scientific name for whales just happens to be - CETACEANS - from the Greek ketos for whale!
Matthew 18:26 & Matthew 20:20: The NKJV removes "worshipped him" (robbing worship from Jesus) (NIV, NASV, RSV, NRSV)
Mark 13:6 & Luke 21:8: removes "Christ" (NIV, NASV, RSV, NRSV)
John 1:3: change "All things were made BY him;" to "All things were made THROUGH Him" (NIV, NRSV, RSV)
John 4:24: change "God is a spirit" to the impersonal, New Age pantheistic,"God is spirit" (NIV, NASV, NRSV, RSV)
John 14:2: (NKJV 1979 edition) change "mansions" to "dwelling places" (NIV, NASV, RSV, NRSV)
John 14:16: change "comforter" to "helper"(refers to Holy Spirit) (NASV)
Acts 4:27, 30: change "holy child" to "holy servant" (refers to Jesus) (NIV, NASV, NRSV, RSV)
Acts 12:4: change "Easter" to "Passover" (NIV, NASV, RSV, NRSV)
Acts 17:22: changes "superstitious" to "religious" (NIV, NASV, NRSV, RSV)
Acts 24:14: change "heresy" to "sect" (NIV, NASV, NRSV, RSV)
Romans 1:18: change "hold the truth" to "suppress the truth" (NIV, NASV, NRSV, RSV)
Romans 1:25: change "changed the truth" to "exchanged the truth" (NIV, NASV, NRSV, RSV)
Romans 5:8: change "commendeth" to "demonstrates" (NIV, NASV)
Romans 16:18: change "good words and fair speeches" to "smooth words and flattering speech" (NIV, NASV, NRSV)
1 Cor. 1:21: change "foolishness of preaching" to "foolishness of the message preached" (ditto NIV, NASV, NRSV, RSV) There's nothing foolish about the gospel of Jesus Christ. Unless you're not saved! 1 Cor. 1:18 says: "For the preaching of the cross is to them that perish FOOLISHNESS. . ." I wonder where that leaves the translators of the NKJV, NIV, NASV, RSV, NRSV?
1 Cor. 1:22: change "require" to "request" (NASV)
1 Cor. 6:9: removes "effeminate" (NIV, NRSV, RSV)
1 Cor. 9:27: change "castaway" to "disqualified" (NIV, NASV, NRSV, RSV)
2 Cor. 2:10: change "person of Christ" to "presence of Christ" (NASV, NRSV, RSV)
2 Cor. 2:17: With all the "corruptions" in the NKJV, you'd expect 2 Cor. 2:17 to change. IT DOES! They change, "For we not as many which CORRUPT the word of God" to "For we are not, as so many, PEDDLING the word of God" (ditto NIV, NASV, NRSV, RSV)
2 Cor. 5:17: change "new creature" to "new creation" (NIV, NRSV, RSV)
2 Cor. 10:5: change "imaginations" to "arguments". Considering New Age "imaging" and "visualization" is now entering the church, this verse in the "old" KJV just won't do. (NIV, RSV)
2 Cor. 11:6: change "rude in speech" to "untrained in speech" (NIV, NASV, RSV, NRSV)
Gal. 2:20: omit "nevertheless I live" (NIV, NASV, NRSV, RSV)
Phil. 2:6: (NKJV 1979e.) change "thought it not robbery to be equal with God" to "did not consider equality with God something to be grasped". (robs Jesus Christ of deity) (NIV, NASV, RSV)
Phil. 3:8: change "dung" to "rubbish" (NIV, NASV, NRSV)
1 Thess. 5:22 change "all appearance of evil" to "every form of evil" (NASV, RSV, NSRV)
1 Timothy 6:5: The NKJV changes "gain is godliness" to "godliness is a MEANS OF gain". There are NO Greek texts with "means of" in them! Where, oh where, did they come from? Care to take a wild guess? YOU GOT IT! The NIV, NASV, RSV, NRSV!
1 Timothy 6:10: The NKJV changes "For the love of money is the root of all evil:" to "For the love of money is a root of all KINDS OF evil". The words "KINDS OF" are found in NO Greek text in the world! Where did they get them? Straight from the NIV, NASV, NRSV!
1 Tim. 6:20: change "science" to "knowledge" (NIV, NASV, RSV, NRSV)
Titus 3:10: change "heretic" to "divisive man" (NIV)
Hebrews 4:8 & Acts 7:45: "Jesus" is changed to "Joshua". (NIV, NASV, RSV)
2 Pet. 2:1: change "damnable heresies" to "destructive heresies" (NIV, NASV, RSV, NRSV)
1 John 3:16: remove "love of God"; (NIV, NASV, RSV, NRSV)
1 John 5:13: The NKJV reads: "These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life, and that you may CONTINUE TO believe in the name of the Son of God." They add "CONTINUE TO" without any Greek text whatsoever! Not even the perverted NIV, NASV, NRSV and RSV go that far! A cruel, subtil (see Genesis 3:1) attack on the believer's eternal security!
Rev. 2:13: change "Satan's seat" to "Satan's throne" (NIV, NASV, RSV, NRSV)
Rev. 6:14: "Heaven" is changed to "sky" in (NIV, NASV, RSV, NRSV)