Jesus, of course, would not have any problem referring to the original languages to fully support anything He might say. Those using the original languages will take comfort in that.
As a person who uses the original languages, and who has been involved in a project to combine all of the major N.T. Greek manuscripts with the variants that make any difference in meaning (Out of over 10,000 variants, only about 7 result in a change of meaning, most are style differences, Christ Jesus vs. Jesus Christ.) and none of those pertains to any doctrines or beliefs.
True, there are passages that are not in ANY of the earliest manuscripts and do not appear in any until even after 300 AD. Those, I would say, are not scripture, and I do not include them in any of the studies I do. Of course, they are available on line for anyone who wants them. If we can "add" them and claim they are scripture, then we can add your words, my words and Joseph Smith's words as well. I find it a dangerous precedent to set even if they were included in the KJV.
The truth is available to all men, even without knowledge of the ancient languages. As a matter of fact, those with that knowledge are just as likely to alter meanings to fit their beliefs as those without the knowledge. For example, the Greek word "Phobos". If you look at al of the manuscripts of the N.T. and the Septuagint, you will find that the word / root word is used about 567 times. In many translations it is translated the same in all places, i.e. fear or terror, you know, shaking in your boots, loss of bodily function, thinking you are all going to die on the lake in a storm ... fear. In less than 10 places though, some modern translations choose the word respect, or honor instead of fear. Unfortunately though, there are already 2 Greek words commonly used that convey that meaning. One of them even uses both one of the words for respect or honor, and the word fear as well showing that there is clearly a difference in meaning. "Render to whom respect is due respect, and fear to whom fear ..."
If you ask some of these modern scholars why they picked this meaning, and what, from the context requires this alteration in these few spots to better convey what God said and meant, they will say something like, they believe it better fits the context of the passage. If you pin them down, they are uncomfortable with those that are known to be Christians still fearing God, and even more uncomfortable with the doctrine of wives being commanded to fear their husbands.
I can understand not liking a doctrine, and wishing to alter the consistent meaning of a word to allow it to better fit with what you want to believe. The problem is again, opening the door for everyone else that doesn't like a doctrine or belief to do the same, or who want to teach a doctrine of belief and so alter the meaning to fit what they want.
For those of you who wonder about the meaning of the word fear, after careful study of all the scriptures, in all manuscripts and fragments available, the word means ... wait for it ... drum roll ... FEAR. That's it.
If you wonder at the application, I live in terror of God, and have since the moment I have been saved. It is a real, honest to God fear. I love my Husband Jesus Christ the Word of God so much that I would rather lose both my arms and legs, my eyes and ears, and my ability to talk than to believe that I would ever displease Him, or teach differently than what He really says and means. It drives me to study and work, not because it earns me anything, but because I love him. Because I care so much. Yes, fear, of not being in the will of one whom I love so much, drives me. Be subject to one another in the fear of Christ. Fear that you will displease Him, fear that your will and HIs might differ. Fear that you might not be in line with your husband because you fear not being in line with the will of God, and that is HIS will.
Fear not being in line with your husbands will and desires for the same reason. Because you love him so much, or, if that is not the case, because you love your Lord so much. The fear of the Lord is, and always will be, the beginning of wisdom.
