Hi Jose,
trimmed
Mostly,I believe, everything that would actually disappear after that time the last apostle John is seen finishing the work he was reserved for

in Revelation) that could go wrong had gone wrong.
It is therefore my utmost belief that all subsequent errors can be examined in the historicity of the events recorded ( in scripture) and put to this test even today.
2John 9 " Whosoever transgresseth,and abideth not in the doctrine of Christ,hath not God.He that abideth in the doctrine of Christ,he hath both the Father and the Son"
Bernard,
There are a plethora of errors/heresies that happened outside of Scriptures and that the Historical Church fought and condemned (Here is a small example from
catholic.com):
Montanism (Late 2nd Century)
Montanus began his career innocently enough through preaching a return to penance and fervor. His movement also emphasized the continuance of miraculous gifts, such as speaking in tongues and prophecy. However, he also claimed that his teachings were above those of the Church, and soon he began to teach Christ’s imminent return in his home town in Phrygia. There were also statements that Montanus himself either was, or at least specially spoke for, the Paraclete that Jesus had promised would come (in reality, the Holy Spirit).
Sabellianism (Early 3rd Century)
The Sabellianists taught that Jesus Christ and God the Father were not distinct persons, but two.aspects or offices of one person. According to them, the three persons of the Trinity exist only in God’s relation to man, not in objective reality.
Arianism (4th Century)
Arius taught that Christ was a creature made by God. By disguising his heresy using orthodox or near-orthodox terminology, he was able to sow great confusion in the Church. He was able to muster the support of many bishops, while others excommunicated him.
Arianism was solemnly condemned in 325 at the First Council of Nicaea, which defined the divinity of Christ, and in 381 at the First Council of Constantinople, which defined the divinity of the Holy Spirit. These two councils gave us the Nicene creed, which Catholics recite at Mass every Sunday.
Pelagianism (5th Century)
Pelagius denied that we inherit original sin from Adam’s sin in the Garden and claimed that we become sinful only through the bad example of the sinful community into which we are born. Conversely, he denied that we inherit righteousness as a result of Christ’s death on the cross and said that we become personally righteous by instruction and imitation in the Christian community, following the example of Christ. Pelagius stated that man is born morally neutral and can achieve heaven under his own powers. According to him, God’s grace is not truly necessary, but merely makes easier an otherwise difficult task.
Semi-Pelagianism (5th Century)
After Augustine refuted the teachings of Pelagius, some tried a modified version of his system. This, too, ended in heresy by claiming that humans can reach out to God under their own power, without God’s grace; that once a person has entered a state of grace, one can retain it through one’s efforts, without further grace from God; and that natural human effort alone can give one some claim to receiving grace, though not strictly merit it.
Nestorianism (5th Century)
This heresy about the person of Christ was initiated by Nestorius, bishop of Constantinople, who denied Mary the title of Theotokos (Greek: “God-bearer” or, less literally, “Mother of God”). Nestorius claimed that she only bore Christ’s human nature in her womb, and proposed the alternative title Christotokos (“Christ-bearer” or “Mother of Christ”).
Orthodox Catholic theologians recognized that Nestorius’s theory would fracture Christ into two separate persons (one human and one divine, joined in a sort of loose unity), only one of whom was in her womb. The Church reacted in 431 with the Council of Ephesus, defining that Mary can be properly referred to as the Mother of God, not in the sense that she is older than God or the source of God, but in the sense that the person she carried in her womb was, in fact, God incarnate (“in the flesh”).
There is some doubt whether Nestorius himself held the heresy his statements imply, and in this century, the Assyrian Church of the East, historically regarded as a Nestorian church, has signed a fully orthodox joint declaration on Christology with the Catholic Church and rejects Nestorianism. It is now in the process of coming into full ecclesial communion with the Catholic Church.
Monophysitism (5th Century)
Monophysitism originated as a reaction to Nestorianism. The Monophysites (led by a man named Eutyches) were horrified by Nestorius’s implication that Christ was two people with two different natures (human and divine). They went to the other extreme, claiming that Christ was one person with only one nature (a fusion of human and divine elements). They are thus known as Monophysites because of their claim that Christ had only one nature (Greek: mono = one; physis = nature).
Orthodox Catholic theologians recognized that Monophysitism was as bad as Nestorianism because it denied Christ’s full humanity and full divinity. If Christ did not have a fully human nature, then he would not be fully human, and if he did not have a fully divine nature then he was not fully divine.
Continued…