Yes, Jesus “needed” to be baptized. Why? He wasn’t a sinner and didn’t need to repent. That was not the need. He was not lacking in anything. So that was not the need. So what purpose did it serve?
For the record, I do know and affirm that Jesus was sinless - didn't feel I needed to do that for an audience of 50 or so fellow Baptists. But the fact remains that it was crucial to Jesus' ministry, for whatever reason, that he be baptized. And if it was even worthwhile for the Savior of all mankind to be baptized, is it completely without basis for someone to think that John
might have been baptized as well (or at least wonder if he was)? The quote you listed that I commented on said that John had no "need" to be baptized -unfortunate choice of words, as John himself said he "needed" to be baptized - by Christ.
In all honesty the long list of reasons you provided for why Jesus was baptized, was pretty much all speculation - reasonable to an extent - but still speculation. In fact it is far more extensive and elaborate speculation than the simple thought that possibly John was baptized.
He demonstrated a public commitment to obeying the will of the Father and beginning His public ministry.
This first one however is not speculation, just obvious and really a non-answer in that we all already affirm that whatever Jesus did was the father's will, including getting baptized. It doesn't explain why God the father wanted Jesus to be baptized
It allowed for John the Baptist to publicly declare that that Jesus was the man that he had been talking about all this time. He had shouting, “Prepare ye the way of the LORD!” This was the best opportunity to disclose who he was talking about.
But there was another instance where the scripture says
(John 1:29) The next day he *saw Jesus coming to him and *said, "Behold, the Lamb of God who takes away the sin of the world!
So evidently this public proclamation could take place without Jesus being baptized (so it doesn't explain the baptism).
It gave a public opportunity for God, Himself, along with the Holy Spirit, to recognize Jesus as Messiah.
Interestingly, this apparently happened more than once, and
before Jesus was baptized - in John 1:33, John says he didn't even know who Jesus was until he saw the Holy Spirit descend on him (which God told him would happen). But he knew who Jesus was when he baptized him, so he was referring to a previous incident. So evidently the Holy Spirit descending on Christ did not require his baptism.
People were beginning to believe and believed for a long time that John was the Messiah and many later believed that Jesus was John the Baptist come back. This setting showed that they were two separate individuals.
How would
John baptizing
Jesus tend to make people quit thinking that John was the Messiah. Sure the Holy Spirit descended on Jesus right afterwards, but that had happened at a previous occasion as well.
So, as I say, this is all
more speculative than people just saying Jesus might have baptized John. Actually though, I don't believe Jesus baptized John, because those verses I listed in #10 establish that, for me anyway. I won't go over my rationale there, judge for yourself.
Not trying to be overly critical, just engaged in the discussion.