But… Baptism
is rebirth for entry into the Kingdom of God. “Water and the Spirit” identifies what the heck this rebirth is that Jesus is talking about - that He’s talking about Baptism.
We know Jesus got baptized in the Jordan, and there was water and there was God speaking; and the breath and the shekhinah glory of God the Father talking = the Spirit.
John is very definite about the story in John 1:29-33 –
The next day, John saw Jesus coming to him, and he says, “Behold the Lamb of God, behold him who takes away the sin of the world. This is he, of whom I said, ‘After me there comes a man who is preferred before me, because he was before me.’ And I knew him not; but so that he may be made manifest in Israel, therefore am I come baptizing with water.”
"And John gave testimony, saying: “I saw the Spirit coming down, as a dove from heaven, and he remained upon him. And I knew him not; but He who sent me to baptize with water said to me, ‘He upon whom you shall see the Spirit descending, and remaining upon him, he it is that baptizes with the Holy Spirit.’”
Water and the Spirit equals baptizing. Not too hard a reference, and it’s only two chapters back.
However, the point for your argument is that all ordinary Christians are commissioned to be able to baptize with water and the Holy Spirit. We get that power from Jesus. Even while He was still on earth, He generally sent out His disciples to baptize, and we barely hear about Him baptizing anybody.
John 3:22 – “After these things Jesus and his disciples came into the land of Judea: and there he abode with them, and baptized.”
John 3:26 – “And they came to John, and said to him, “Rabbi, he that was with thee beyond the Jordan, to whom you gave testimony, behold he baptizes, and all men come to him.””
John 4:1-2 – “…the Pharisees had heard that Jesus makes more disciples, and baptizeth more than John (Though Jesus himself did not baptize, but his disciples)…”
So it sounds like Jesus probably baptized some of the apostles and disciples, and then He had them doing all the baptizing afterward.
Okay… so Jesus commissioned His disciples and apostles to baptize using His Own power as God. But He still was God, and He didn’t give away all His power. God has power to save any way He likes, although His ordinary means is the Church baptizing people, etc.
Jesus told the Good Thief he’d be with Him that day in Paradise. How did He baptize Him? He couldn’t even reach the Thief with spit, and it wasn’t raining yet by the time the Romans killed the two Thieves who were still alive, to prevent Passover annoyance.
So He baptized him by desire.
Jesus “descended into hell,” and preached to the patriarchs in Sheol, and saved them and brought them to heaven. I doubt there was any water in Sheol, so how did He baptize the patriarchs? By desire.