theMutant:
Fine, then, let’s skip the topic of sola Scriptura even though Protestants (and apparently you) seem to be arguing that it was believed by the Early Church
The Church existed and was teaching authoritatively before the Bible was completed. God established the Church and vested it with His own authority. (Matthew 16:18-19; 18:17; 28:18-20; Luke 10:16; John 14:16-17; Acts 2:42; Ephesians 3:4-5; 1 Thessalonians 4:1-2; 2 Thessalonians 2:15; 1 Timothy 3:14-16)
Continued…
Acts 2:42 (KJV), " 42. And they continued stedfastly in the apostles’ doctrine and fellowship, and in breaking of bread, and in prayers"
So, let’s put this in perspective…Christ has been killled, raised from the dead and resurrected. Christ has given the disciples a mandate (ref Mt. 28). So, the question is - what was the apostles’ doctrine? Glad you asked…the apostles doctrine was the gospel message - Christ was God incarnate, was killed, came back to life and ascended to heaven. He was the Son of God. What Christ had taught them when He was on earth was what they shared with others down the line. And of course the disciples had all things in common, met daily for fellowship and breaking of bread and prayed. No mystery here.
Now, moving on to Eph 3:4-5 (KJV)
“2. If ye have heard of the dispensation of the grace of God which is given me to you-ward:
3. How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
4. Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
5. Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;
6. That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
7. Whereof I was made a minister, according to the gift of the grace of God given unto me by the effectual working of his power”
So, the mystery of Christ was not revealed in ages past, but now was understood by the apostles and prophets. What is this mystery? vs. 6 tells us that the mystery is that the Gentiles should be fellowheirs and of the same body and partakers of his promise. So, what does this have to do with the two topical sentences?
Now, moving on to I Thess. 4:1-2
“1. Furthermore then we beseech you, brethren, and exhort you by the Lord Jesus, that as ye have received of us how ye ought to walk and to please God, so ye would abound more and more.
2. For ye know what commandments we gave you by the Lord Jesus”
Look at the verbs used here by Paul, “beseech, exhort, ought to”. Look at the object, “brethren”. So, Paul and others encouraging and admonishing their fellow brothers in the faith to conduct themselves in a manner worthy of the Christian name. Commandments were given to the brethren by the Lord, through the apostles. What were those commandments? Were they the gospel? Were they rituals or requirements for foot-washing? Not likely. They were given guidelines for conduct. Most likely the same kind of guidelines given by the council at the church at Jerusalem led by James.