And like Apostle Paul said 1 Corinthians 1 that we all in Christ should be speaking the same thing. That certainly does not mean it's OK for each to have a different opinion about the true interpretation of God's Word. There is only one True interpretation of God's Word, and it is per what God determines. Let me explain further...
We are to allow God's Word to interpret God's Word, the example being two or more witnesses to establish every word. So those who introduce a foreign idea into the reading of The Bible, which has no Biblical witness, or that flat denies a Scripture as written, reveals the devil's working. What can we do then? This is where the Great Equalizer steps in, The Holy Spirit. The Word of God was written via The Holy Spirit, and He is required in order for us to properly understand His Word. Age of Reason type thinking is only useful up to a point. This is why many brethren never progress to the
"strong meat" of God's Word. They are kept on the "
milk" of God's Word, trusting in their Church organization or some man's opinion.
It really depends on the nature and the extent of the division. If you go to church A and I go to church B because you prefer contemporary music and I prefer traditional hymns, why does that have to be a problem? If your church members and my church members refuse to accept that the others are brothers and sisters in Christ based on a preference that is a different matter entirely.
If that means those are small matters, then it shouldn't be something that 'creates' a division in the Body of Christ. Yet that's exactly what those kind of small matters have done throughout Christian history.
All this is well and good but has nothing to do with the original premise. How does one study? By looking at the whole. That takes time and requires a degree of cross-referencing. Starting at the beginning and working through to the end creates the exact same problems with context and understanding the bigger picture that you complained about in the beginning when discussing churches that don't do that precise thing.
I wouldn't be so quick to pass line upon line Bible study off, because that is the method which God is recommending in that Isaiah 28 Chapter. He is simply using the mocking words of those leaders at Jerusalem against themselves, as they are complaining that His Word must be, precept upon precept, line upon line, here a little and there a little, as if they were like little children.
And because TRUE Bible study of His Word is that way, precept upon precept, line upon line... for that reason those leaders at Jerusalem would fall backward, and be broken, and snared, and taken. (put for taken in deception)
And complainers here instead come along trying... to counter what God Himself showed in that Isaiah 28 chapter about how to study and teach His Word...
Isa 28:9-25
9 Whom shall He teach knowledge? and whom shall He make to understand doctrine? them that are weaned from the milk, and drawn from the breasts.
The above is where Apostle Paul was drawing from in Hebrews 5 when he rebuked brethren there for still being on the "milk" of God's Word when they should have become teachers themselves and on the "strong meat" of The Word.
10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:
11 For with stammering lips and another tongue will he speak to this people.
12 To whom He said, "This is the rest wherewith ye may cause the weary to rest; and this is the refreshing: yet they would not hear."
That His Word,
"precept upon precept, precept upon precept; line upon line, line upon line; here a little, and there a litte;", would be that
"rest wherewith ye may cause the weary to rest"?
YES! God's Word line upon line, LET GOD SPEAK to His people, not some slicer-dicer of His Word that never gets around to actually teaching what God says in His Word as written!
13 But the word of the LORD was unto them precept upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little; that they might go, and fall backward, and be broken, and snared, and taken.
14 Wherefore hear the word of the LORD, ye scornful men, that rule this people which is in Jerusalem.
And there it is above, God using their own mocking against what He says about His Word being
"precept upon precept, ...".
15 Because ye have said, "We have made a covenant with death, and with hell are we at agreement; when the overflowing scourge shall pass through, it shall not come unto us: for we have made lies our refuge, and under falsehood have we hid ourselves:"
The result of their mocking and tomfoolery with His Word is that instead of entering into His Rest, they instead have made a covenant with death, and are in agreement with hell itself, and even think themselves so high and mighty that when that overflowing scourge shall pass through, they believe it shall not harm them! This rebuke from GOD to them is a little like His rebuke against the false preachers in Ezekiel 13 that hunt souls to make them fly (i.e. push man's false doctrine of a pre-trib rapture theory).
16 Therefore thus saith the Lord GOD, Behold, I lay in Zion for a foundation, a stone, a tried stone, a precious corner stone, a sure foundation: he that believeth shall not make haste.
17 Judgment also will I lay to the line, and righteousness to the plummet: and the hail shall sweep away the refuge of lies, and the waters shall overflow the hiding place.
18 And your covenant with death shall be disannulled, and your agreement with hell shall not stand; when the overflowing scourge shall pass through, then ye shall be trodden down by it.
19 From the time that it goeth forth it shall take you: for morning by morning shall it pass over, by day and by night: and it shall be a vexation only to understand the report.
20 For the bed is shorter than that a man can stretch himself on it: and the covering narrower than that he can wrap himself in it.
21 For the LORD shall rise up as in mount Perazim, he shall be wroth as in the valley of Gibeon, that He may do His work, His strange work; and bring to pass His act, His strange act.
Those who have actually studied... enough of their Bible ought to easily grasp what timing and future event God is pointing to in the above. It is about His future judgment on the last day of this present world when that symbolic "stone" Jesus Christ returns, and His "consuming fire" and hail will destroy man's works off this earth.
22 Now therefore be ye not mockers, lest your bands be made strong: for I have heard from the Lord GOD of hosts a consumption, even determined upon the whole earth.
That further confirms God is pointing to the end of this present world with the above.
23 Give ye ear, and hear My voice; hearken, and hear My speech.
24 Doth the plowman plow all day to sow? doth he open and break the clods of his ground?
25 When he hath made plain the face thereof, doth he not cast abroad the fitches, and scatter the cummin, and cast in the principal wheat and the appointed barley and rie in their place?
KJV
In this latter section of the Isaiah 28 Chapter, God is using agricultural examples of how to approach the teaching of His Word. Does a plowman continually plow the ground and never get around to sowing the actual seed into the ground? That's what God is asking above.
Comparing that with the teaching of His Word, is the Bible teacher to continually plow the same ground, over and over and over again, and never getting to the actual sowing of the 'seed'? What did Lord Jesus say to Peter when He asked if Peter loved Him? "Feed My sheep".
So talk by those who make excuses, like, "How much time do you think we have to teach God's Word line upon line?", are just excuses.