Gumby!
Well, John the Baptist was preaching that the Kingdom of God was at hand, that the Messiah everyone was looking for was about to be made known. But he didn't really know for sure that Jesus was the Messiah- UNTIL he had that experience with Heaven when he baptized Jesus. Curiously though, when Jesus approached John to get baptized, John said it was he that should be getting baptized by Jesus. Also, John was baptizing everyone for the forgiveness of sins, while Jesus was without sin. Jesus told him to do it anyway to "fulfull all righteousness".
Let's talk about what was going on with the Nation of Israel during this time. The throne of David was desolate and vacant for almost a hundred years now, being under the subjugation of Gentile Overlords. Yet Moses and the Prophets had taught them that they, who were God's Chosen People, would be rewarded with blessings and prosperity and power if they lived righteously. They were finding it hard to explain why they were still being ruled by those nasty Romans. About a hundred years earlier there arose some "apocalyptic prophets" who taught that their state of humiliation and suffering was because they were paying the penalty for the nation's sins. They were paying the price just like in the Babylonian and other captivities, where the nation had been sinful. But these apocalyptists said that they could hold their chins up, because their days of affliction are almost over, and God's patience with these Gentile tyrrants was coming to an end. They were relying on the predictions of Ezekiel and Daniel and the like, where the kingdoms of the world were going to become the Kingdom of God. To the Jewish mind of the day, this was what was meant by the Kingdom of God, and that was taught by both John and Jesus. They fully expected that the Messiah was going to come and rule the nations in power and righteousness, just like it is in Heaven. In John's day, a lot of people were feeling a kind of imminent fulfillment of the prophecies. John the Baptist had studied the Law and the Prophets, and he was preaching that the Kingdom of God was at hand, the Messiah was about to be revealed.
Many Jews believed that the coming kingdom was very close to happening, near at hand, even at the door. However, they had a lot of different opinions as to the Nature of this Kingdom. Many, relying on a literal reading of the Old Testament, were expecting a new king would be set up to deliver the Jewish nation from its enemies, and then this king, this Messiah, who would be a descendant of King David, would become the righteous ruler over the whole world. Other smaller groups believed and taught that this Kingdom of God was not "of this world". They believed that the world was to coming to an end, and that a "new heaven and a new earth" is going to usher in the Kingdom of God to be established.
Some Jews thought that God would establish the Kingdom by direct and divine intervention. Others believed that there would be an intermediary, a Messiah, who was more than just a prophet. Some believed that even Gentiles could be allowed to enter this "new world". And so on....
Against this back-drop, I can see John the Baptist "wrestling" with all these different theories and opinions. He may have been sure that Jesus was the Messiah, but probably had a lot of questions as to exactly what this Kingdom of God was going to be like, how it would manifest, spiritual or temporal, etc. etc. John could speak with conviction, believing Jesus was the promised Messiah, and yet still have questions whether Jesus the Messiah was going to overthrow the Roman Governers (and maybe even free John from prison....?). Maybe this whole Messiah thing is about a heavenly kingdom, a spiritual fulfillment. Which? (If I were sitting in that jail awaiting my own death, I would sure be asking a lot of those kinds of questions, and yet could still see myself believing he was the Messiah.) O.K. Jesus, you're the man! Now please tell me what you're going to do, given that you are the Messiah?
On the other hand, John was human like the rest of us. Maybe, after rotting in that prison for a few months, John started to have some doubts about his own mission, and his own experiences. How could he get in this mess? Why doesn't God help me? Why didn't Jesus free me, if he's the Messiah? Why didn't he even come and see me while I'm in here? Does he even care? Yeah, I did have that experience with him and heaven when I baptized him, but all God said was that He was pleased with him. Maybe God will use this Jesus for His purposes, but maybe it will be God Himself that's going to do everything, and Jesus will just be under Him, as His instrument on earth. And so, John sends his disciples back to Jesus and they flat-out ask him "Are you the Messiah, or shall we look for someone else?" And so Jesus right there began to perform miracles in front of these disciples, and then told them to go back to John and tell them what they had seen: the blind see, the lame walk, the lepers made clean, the deaf hear, the dead rise again." (Luke 7:20-23; Matt. 11:3-6). Now I know that I am only speculating with logic here, and I wasn't there when all this happened. But I can certainly understand how a person could have a significant spiritual experience, and then later begin to vacillate. Look at the Apostle Peter who denied the Christ, after all that he had seen. What about Doubting Thomas or Judas Iscariot? All had doubts. Yet they witnessed some pretty big miracles. So it is entirely possible that at one point in time John the Baptist had to wrestle with his own doubts, and needed more encouragement and convincing. You just don't leave a guy sit there languishing in jail for months, putting him on ignore, and then to expect his faith to necessarily carry him thru non-stop. How much could YOU take, if you were in that situation? Isn't this part of the "human condition"?
Now Narkissos has raised an interesting question about why the disciples of John didn't merge with the disciples of Jesus. I'm doing a little digging on that one as well. But, if John keeps telling his disciples that he (John) is NOT the Messiah, but that he is "the one sent on to prepare the way for him" (Jesus) etc. - it seems pretty clear to me that he is pointing his disciples to Jesus as the Messiah. In other words, John is telling his disciples to go over there and become followers of Jesus. I can see the members of the Church of John flocking over and becoming members of the Church of Christ, figuratively speaking, of course.
Still, I want to know more about these Mandeans that Narkissos referred to, saying that "they were disciples of John and considered Jesus as a false prophet." And, of course, I will have to deal with his scriptural reference in Acts 19.
Anyway Gumby, I definitely do not think for one minute that John the Baptist would have forgotten his experience when he was baptizing Jesus. I just think he had a lot of questions, and that he had his moments of spiritual and human weakness for the reasons stated above.
Regards!
Rod P.