JLB
As an FYI, here is the picture I was painting with Romans 6.
Looking back at Noah, according to Peter the water saved him, but from what?... Death? I don't think so because Noah was rightous and obedient to the Lord. However, we also know that Noah obeyed God and built the ark. Had Noah and his family not trusted the Lord, the water would have destroyed him and his family.
What then was the function of the water? Was it not to purge the world from sin?
Genesis 6:13 ASV
And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.
So we see that Noah was saved by the water from the sin that permeated the world he lived in.
Now then, what was the function of the ark? Was it not a vessel that kept him from destruction?
When we look at Romans 6, the picture is that of death, burial and ressurection.
If we expand this picture, we understand that we are sinful, and we need a savior. Peter stepped out of the boat, took his eyes off Jesus and started to sink which would have caused his death. Jesus rescues Peter from the death which would have occured in the water. In this same way, God rescues Noah in the ark.
We are sinners and our old man must be put to death if we are to be born again because to be born again is to say the old man has died.
Jesus freely gave his life at the cross. Nobody took it. In the same way we need to pick up our cross which leads to death because without death, there is no resurrection.
Going to your death is a fearful thing. But we don't have to go it alone. Jesus is our Ark, Jesus is our salvation and when we go under the baptismal waters, our old man dies. We have nothing to fear because Jesus is with us in the waters. When the old man dies, we are brought back to a new life because we have shared in the death of Jesus and we share in the life of Jesus.
In part, this is a picture of bsptism and it can be a beautiful picture.
In Acts 2, the people are convicted of their sin. Their hearts are pricked and they want to eagerly make it right. Peter tells them to repent and be baptized for the forgiveness of sins. I do not believe this is a command from Peter. Instead, it was an opportunity for Peter to be obedient to the great commission. Ironically, Jesus did not command anyone to be baptized. However, I do see every NT baptism as a response to the gospel.
In this same way, people respond to different parts of the gospel so it's natural that we would have varying accounts of folks being baptized.
Do I believe one must be baptized to be saved? No. But I would caution that if we are sharing our faith and the gospel, baptism will come up which will afford us to be obedient and baptize.