1. Paul's statement in Acts 20 does not place any limit on what sorts of error would come in - as we see in the text.
2. In 3 John 1 we get a good look at how this was happening in the first century.
3 John 1: 9 I wrote something to the church; but Diotrephes, who loves to be first among them, does not accept what we say. 10 For this reason, if I come, I will call attention to his deeds which he does, unjustly accusing us with wicked words; and not satisfied with this, he himself does not receive the brethren, either, and he forbids those who desire to do so and puts them out of the church
3. In 2 John 1
9 Anyone who goes too far and does not abide in the teaching of Christ, does not have God; the one who abides in the teaching, he has both the Father and the Son. 10 If anyone comes to you and does not bring this teaching, do not receive him into your house, and do not give him a greeting; 11 for the one who gives him a greeting participates in his evil deeds.
4. In 1 Tim 1:
3 As I urged you upon my departure for Macedonia, remain on at Ephesus so that you may instruct certain men not to teach strange doctrines, 4 nor to pay attention to myths and endless genealogies, which give rise to mere speculation rather than furthering the administration of God which is by faith. 5 But the goal of our instruction is love from a pure heart and a good conscience and a sincere faith. 6 For some men, straying from these things, have turned aside to fruitless discussion, 7 wanting to be teachers of the Law, even though they do not understand either what they are saying or the matters about which they make confident assertions.
4. Titus 1
7 For the overseer must be above reproach as God’s steward, not self-willed, not quick-tempered, not addicted to wine, not pugnacious, not fond of sordid gain, 8 but hospitable, loving what is good, sensible, just, devout, self-controlled, 9 holding fast the faithful word which is in accordance with the teaching, so that he will be able both to exhort in sound doctrine and to refute those who contradict.
10 For there are many rebellious men, empty talkers and deceivers, especially those of the circumcision, 11 who must be silenced because they are upsetting whole families, teaching things they should not teach for the sake of sordid gain. 12 One of themselves, a prophet of their own, said, “Cretans are always liars, evil beasts, lazy gluttons.” 13 This testimony is true. For this reason reprove them severely so that they may be sound in the faith, 14 not paying attention to Jewish myths and commandments of men who turn away from the truth. 15 To the pure, all things are pure; but to those who are defiled and unbelieving, nothing is pure, but both their mind and their conscience are defiled. 16 They profess to know God, but by their deeds they deny Him, being detestable and disobedient and worthless for any good deed.
5. Jude 1
3 Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints. 4 For certain persons have crept in unnoticed, those who were long beforehand marked out for this condemnation, ungodly persons who turn the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ.
8 Yet in the same way these men, also by dreaming, defile the flesh, and reject authority, and revile angelic majesties. ...10 But these men revile the things which they do not understand; and the things which they know by instinct, like unreasoning animals, by these things they are destroyed. 11 Woe to them! For they have gone the way of Cain, and for pay they have rushed headlong into the error of Balaam, and perished in the rebellion of Korah. 12 These are the men who are hidden reefs in your love feasts when they feast with you without fear, caring for themselves; clouds without water, carried along by winds; autumn trees without fruit, doubly dead, uprooted; 13 wild waves of the sea, casting up their own shame like foam; wandering stars, for whom the black darkness has been reserved forever.
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Bottom line is - we see these teachers of error - inside the church -- all over the place in the first century church - no need to wait till the 2nd or 3rd century to find the problem.
Ok then I see that in those texts.. Paul did, Timothy did, Titus did, Jude did... etc.
So we look "again" at those texts
4. In
1 Tim 1:
3 As I urged you upon my departure for Macedonia,
remain on at Ephesus so that you may instruct certain men not to teach strange doctrines, 4 nor to pay attention to myths and
endless genealogies, which give rise to mere speculation rather than
furthering the administration of God which is by faith. 5 But the goal of our instruction is love from a pure heart and a good conscience and a sincere faith. 6 For some men,
straying from these things, have turned aside to fruitless discussion, 7
wanting to be teachers of the Law, even though they do not understand either what they are saying or the matters about which they make confident assertions.
Paul does NOT say "no need to remain at Ephesus to instruct certain men not to teach strange doctrines ... all of that has been done".
There is no "hmm we have no issues with error creeping in ... finally at last!" texts.
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We have the "more errors coming" statement in Acts 20... but no "no more errors ... at last!" texts.
-
Acts 20:28 Be on guard for yourselves and for all the flock, among which the Holy Spirit has made you overseers, to shepherd the church of God which He purchased with His own blood. 29
I know that after my departure savage wolves will come in among you, not sparing the flock; 30 and from among your own selves men will arise,
speaking perverse things, to draw away the disciples after them. 31 Therefore be on the alert, NASB 1955
28 Keep watch over yourselves and all the flock of which the Holy Spirit has made you overseers. Be shepherds of the church of God, which he bought with his own blood. 29 I know that after I leave, savage wolves will c
ome in among you and will not spare the flock. 30 Even from your own number men will arise and
distort the truth in order to draw away disciples after them. 31 So be on your guard! Remember that for three years I never stopped warning each of you night and day with tears. NIV
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We have the "appoint elders who can deal with these issues when they come up as they already have sprouted up" texts
Titus
10
For there are many rebellious men, empty talkers and deceivers, especially those of the circumcision, 11
who must be silenced because they are upsetting whole families, teaching things they should not
teach for the sake of sordid gain. 12 One of themselves, a prophet of their own, said, “Cretans are always liars, evil beasts, lazy gluttons.” 13 This testimony is true.
For this reason reprove them severely so that they may be sound in the faith, 14 not paying attention to Jewish myths and commandments of men who turn away from the truth.
But we have no "all problems solved... nothing more to do" texts.
================
We have the "I wanted to write a nice happy letter but instead I have to urge you to fight...to contend earnestly for sound doctrine" texts. Warnings about "hidden reefs" already in the church...
Jude 1
3 Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you
appealing that you contend earnestly for the faith which was once for all handed down to the saints. 4 For
certain persons have crept in unnoticed, those who were long beforehand marked out for this condemnation, ungodly persons
who turn the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ.
8 Yet i
n the same way these men, also by dreaming, defile the flesh, and reject authority, and revile angelic majesties. ...10 But
these men revile the things which they do not understand; and the things which they know by instinct, like unreasoning animals, by these things they are destroyed. 11 Woe to them! For
they have gone the way of Cain, and for pay they have rushed headlong into the error of Balaam, and perished in the rebellion of Korah. 12
These are the men who are hidden reefs in your love feasts when they feast with you without fear, caring for themselves; clouds without water, carried along by winds; autumn trees without fruit, doubly dead, uprooted; 13 wild waves of the sea, casting up their own shame like foam; wandering stars, for whom the black darkness has been reserved forever.
But we have no "all those problems solved... nothing more to do" texts.