Some of the most effective preacher's of the last century barely had a firm grasp on the English language, let alone on biblical languages. If you are saved, the same Spirit that breathed the breath of life into you also breathed the breath of life into the Word of God. Your not going to have any trouble understanding it.
John 14:17 Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.
John 16:13 Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
First one note of correction. I don't believe John 16:13 applies to us today. I don't believe any believer today is "guided into all truth." If that were true, we would not have differing denominations. We would all be in agreement in all doctrines, and would not have anything to debate. We all would have "all truth." But that isn't the case.
I believe that that verse was specifically spoken to the apostles and refers to them writing the Scripture. The Holy Spirit would guide them into all truth--the exact truth that God would have them pen. Thus the original MSS are inspired, without error, and has all the truth that God wants us to have. No other person can claim that promise but the apostles, the writers of our NT Scripture.
Secondly, I don't believe that we should ignore Biblical commands:
2 Timothy 2:15 Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.
John 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.
They Bible commands to be students of God's Word. When we have so many resources at our fingertips, I believe that God will hold us accountable for the light that we have, and the light that we have available to us. He will hold us accountable for ignoring the light. If I am a preacher and I ignore time in prayer, and ignore the study of the Word I will be held accountable. If I ignore proper preparation I will be held accountable. If there are words and phrases that have meanings that can only be found out by going to outside sources that reference the original languages then I will be held accountable if I don't do that.
Nehemiah 8:4 And Ezra the scribe stood upon a pulpit of wood, which they had made for the purpose;...
Nehemiah 8:5 And Ezra opened the book in the sight of all the people; (for he was above all the people; and when he opened it, all the people stood up:
Nehemiah 8:8 So they read in the book in the law of God distinctly,
and gave the sense, and caused them to understand the reading.