A sermon preached in truth during apostolic time can be preached today, and a sermon preached in truth today could have been preached then. False doctrine can change with the time but the truth of God never changes (Gal 1:6-9).
Denominational doctrine is proof that false doctrine changes with the times. Instrumental music in Christian worship is a modern innovation, even in the Roman Catholic Church, which is the mother of all innovations. It was first introduced into that hot-bed of spiritual corruptions in the seventh century, under Pope Vitalian and it is today but a stolen idol from that sanctuary.
While the first instrument was introduced in the seventh century, there was no general adoption of it, even in corrupt Romanism, until late in the thirteenth century; which makes it a most modern innovation. Thus history pronounces: “The organ is said to have been first introduced into church music by Pope Vitalian I in 666. In 757, a great organ was sent as a present to Pepin by the Byzantine emperor, Constantine Copronymus, and placed in the church of St. Corneille at Compiegne.
Many have lost sight as to how false doctrine gets started. If the churches of Christ stop speaking where the bible speaks and remaining silent where the bible is silent, surely false doctrine will enter in and make it into another denomination (1 Pet 4:11). This is why many liberal minded brethren are inching towards instrumental music in their worship. In fact, some already have it. Many are also inching toward having women preach the gospel just like men. In fact, some already have it. They first began allowing women to teach young children and other women in classrooms, though the scripture strictly forbid any woman from speaking in the assembly (1 Cor 14:33-40). Thus, the church redefined “assembly” to mean “in the main auditorium” as opposed to when the church comes together. It’s a neat trick, but those who did it added to God’s Word, and thus will be subject to God at the judgment and all those who followed them.
If you want to be right with God, then get right with those who were inspired of God, his apostles. Early day Christians continued in the apostolic doctrine (Acts 2:42). If Christians today have strayed, it is because they changed the truth of God into a lie, and worshiped not according to the inspired writers but rather followed in the writings and works of men (Rom 1:25 f; Mt 15:7-9).
Many in the churches of Christ today are following the traditions of men and not the traditions of Christ and his apostles. This happens when men trust in the books of denominational commentaries and lexicons which they use to rewrite the doctrine of Christ into the doctrine of denominations. Thus, they have added to and subtracted from God’s Word even as denominations did centuries ago.
They send off their children to colleges and universities to learn of God’s Word, as opposed to having their children learn from seasoned teachers, preachers, and elders in the church. They have forgotten or they do not believe that the church is the manifold wisdom of God and is the pillar and ground of the truth (Eph 3:10 f; 1 Tim 3:15). When a church stops speaking the very words of God, that is the day they cease being the Lord’s church and the day they begin being just another denomination. In other words, they are the Lord’s church in name only. Sadly, our liberal minded brethren are so far removed from the truth established by Christ and his apostles, they have become a danger to those who still hold on to the principle of not going beyond that which was written (1 Cor 4:6). Remember the warnings of the apostle Paul who said, “Hold fast the pattern of sound words which you have heard from me, in faith and love which are in Christ Jesus” (2 Tim 1:13). “Therefore, brethren, stand fast and hold the traditions which you were taught, whether by word or our epistle” (2 Thess 2:15). “Holding fast the faithful word as he has been taught, that he may be able, by sound doctrine, both to exhort and convict those who contradict” (Titus 1:9). And again Paul admonished, “For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears; And they shall turn away their ears from the truth, and shall be turned unto fables” (2 Tim 4:3-4). If we no longer continue in the Word of Christ and his apostles, we are no longer Christians and we no longer have God (Jn 8:31 f; 2 Jn 9).