Amazing. You said all that, and didn't answer a single question I asked.
Acts 2:38 does not negate Matthew 26:28. Yes, Christ's blood was shed for the remission of sins, but we do not receive that remission of sins until we obey his commandments, which includes baptism.
In Acts 22:16, it is Ananias telling Paul to "be baptized, washing away your sins". You still did not answer my question. Is it possible to become a Christian without having your sins washed away?
I agree that Galatians 3:26 is very important to this discussion. Let's look at both verses.
26 For you are all sons of God through faith in Christ Jesus.
27 For as many of you as were baptized into Christ have put on Christ.
Verse 26 tells us that we become sons of God through faith. How do we do that? Verse 27 explains it for us. The word translated "for" at the beginning of verse 27 is a conjunction . It ties the 2 verse together, and thus verse 27 explains how we become sons of God through faith. It is by being baptized into Christ. And yet you still didn't answer my question. Is it possible to become a Christian without putting on Christ?
That is true
You still did not answer my question. Is it possible to become a Christian without having your sins washed away?
That's a pretty vague quetion. Do you mean is it possible for immersion in water to wash away sins?
Verse 26 tells us that we become sons of God through faith. How do we do that?
I'd say we do it by believing He rose from the dead and following His command to love one's neighbor.
Is it possible to become a Christian without putting on Christ?
Do you mean that in a literal sense i.e. wearing Christ like a cloak -- and if so do you believe that the bread and wine (you take wine right?) at the Lord's Supper is His literal body and blood?
If someone, however, is witnessed to and changes his life in such a way that the fruit of the spirit is evident -- love, joy, peace, etc. -- where he was once led by his sinful nature, and he's clearly unashamed of the Risen Christ, I would not dare refuse to call that person a Christian even if his baptism was via infusion, or even if he didn't have a water baptism at all.