Too many reasons to list, but one reason that I find particularly interesting is the fact that water is corrupt. There is no such thing as "pure" water. Therefore, how can something corrupt and that is under the Curse of the Lord procure Purity, or, Salvation? It can't.
Look Brother - your point was well spoken and previously recorded.
I am afraid of all my sufferings;
I know that You will not hold me innocent.
If I am condemned,
Why then do I labor in vain?
If I wash myself with snow water,
And cleanse my hands with soap,
Yet You will plunge me into the pit,
And my own clothes will abhor me.
“For
He is not a man, as I
am,
That I may answer Him,
And that we should go to court together.
Nor is there any mediator between us,
Who may lay his hand on us both.
Let Him take His rod away from me,
And do not let dread of Him terrify me.
Then I would speak and not fear Him,
But it is not so with me.
The purest of pure snow melt water cannot save anyone.
Only a Mediator between the FATHER and man = the Eternal Son who washed us in His Blood.
Grace to you and peace from Him who is and who was and who is to come, and from the seven Spirits who are before His throne, and from Jesus Christ, the faithful witness, the firstborn from the dead, and the ruler over the kings of the earth.
To Him who loved us and washed us from our sins in His own blood, and has made us kings and priests to His God and Father, to Him
be glory and dominion forever and ever. Amen. -Revelation ch1
No mention of water baptism in Heaven = only the BLOOD of the LAMB