Just curious why you think baptist is man made doctrine? They have no creed, organization, just Christ, Bible, salvation, and baptism..at least the ones I have attended
It is always good to ask questions, and I would be happy to discuss.
First off, baptists did not come around til a gentleman named John Smyth about the 1600's. They are a slight break off branch of 'anabaptists' which both are break off's of the catholic church. The catholic church is a break off from the Lords church.
Nevertheless, it is a 'reformation' group. The act of 'reforming' is merely just improving upon an already erroneous belief system (catholicism/anabaptist/calvinist).
They do in fact have an organization called the American Baptist Churches of the USA.
Everyone has a creed. The churches of Christs creed is 'no creed but Christ' which is a creed in itself merely stating we follow nothing but what our Lord and Savior had instructed for us to do for salvation and conduct. It is just the baptists allow creeds not found in scripture. One such is child baptism, another is original sin, and the list goes on. Some even believe it okay to just sprinkle or pour water for baptism. Many believe that baptism is not really necessary. Those are in fact creeds by the very definition.
I do not deny that they believe in Christ, the problem arises that they do not obey/ they only do what they feel like not what scripture requires. (I do not say this to be insulting or belligerent).
The bible states many times over that Christ, God, instruct and prayed for 'unity'. This falls under the fact that the bible instructs only ONE church. The very meaning of church in the greek is
ekklesia which in context for Christians means 'the called out' or all those IN Christ.
This is why churches of Christ keep stressing that there is only one. Not because we say so, but because scripture says so.
John 17:20-23
Romans 12
1 Corinthians 12
Ephesians 4:4-6
The fact that there are some many different churches means that 1 and 2 Timothy 4 happened. People that began to not adhere to Christs teachings and the message delivered to the apostles by the Holy Spirit to give to us (the bible).
Ephesians 4 strictly points out there is only ONE.
Romans 12 strictly points out, many people/members, only ONE body (church)
1 Corinthians 12 strictly points out, the body is not one member, but many. I dont see many bodies here, just A body.
Which brings us to another point, why do churches of Christ think THEY are the ONLY ones right?
First off, it is because it is Christs church. It is our Lords church that was established BY our Lord, and not some man.
The baptists were established by men, John Smyth and Thomas Helwys. And, might it be important to note, the root definition of 'denomination' is "separate and apart from the original", which is very fitting for them because that is exactly what it is.
We call ourselves church of Christ not only because it is His church that He established, but also because there is no authority to give the church any such name like baptist or methodist or catholic, or anabaptist, etc etc.
We do see authority for church of Christ, even church of God, but nothing about baptist.
Romans 16:16
I must admit that JUST because a church is called "church of Christ" doesn't necessarily mean they are good to go. Some are only in name church of Christ, but they brushed aside scripture to follow man made beliefs.
For a baptist church to follow Christ, would mean they give honor and glory to Christ by leaving man made established names like baptist, created by two men, and drop man made creeds/doctrines like original sin, faith only, instrumental music, etc