Taking time to consult a dictionary while reading Scripture distracts the reader from his/her Scripture study.
The command is to STUDY to show thyself approved unto God. I think God means to study the scriptures. If he does the meaning of his words are in the scriptures, hidden only to the natural man. If this is not true then how could God, with the same words, reveal his mind to one while with the same words purposely hide it from another? Isn't that exactly what he says he does?
11 For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.
12 Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God.
13 Which things also
we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual. (this is the key)
14 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned. (natural men receive only the human side of things)
15 But he that is spiritual judgeth all things, yet he himself is judged of no man.
16 For who hath known the mind of the Lord, that he may instruct him? but we have the mind of Christ.
The guilt of the charge he is making in this chapter is exactly to the Bible translators into many different translations in the same language. I think you are guilty.
1 And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.
2 For I determined not to know any thing among you, save Jesus Christ, and him crucified.
3 And I was with you in weakness, and in fear, and in much trembling.
4 And my speech and my preaching was not with enticing words of man's wisdom, but in demonstration of the Spirit and of power:
5 That your faith should not stand in the wisdom of men, but in the power of God.
6 Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world, that come to nought:
7 But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
8 Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
9 But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
10 But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God.
These 10 verses seems to say exactly the opposite of what you say. You seem to be striving for more excellent words that are easier to read while Paul distinctly says it is impossible to understand the words except the Spirit who is in both you and God at the same time teaches you. Not only this but he says he will choose the words. This makes sense to me that he would choose the words and this practice is consistent throughout the whole Bible. All our understanding is based on the words and how we understand them. Obviously we do not judge them the same way.
If you were making an argument for two or three translations over time it would be one thing but you are making an argument for hundreds and hundreds with no end in sight plus for paraphrases and for dynamic equivalence.