But still no Scripture to support this "Scriptural perspective."
Again, priestly ceremonial-washing (baptism) before approaching God in the function of 'priest' is throughout the Old Testament. You know this, I already posted this and you conceded as much when you originally wrote, "You would have to do some sufficient accurate cross-referencing between water baptism and priesthood in the post-resurrection dispensation to make this point."
Limiting acceptable responses to the 'post-resurrection dispensation' implies that you recognize the relationship in assumed pre-resurrection dispensations but have excluded those responses from the set of 'qualified' evidence 'a priori'. You also let the equivalence of 'dispensational' and 'non-dispensational' perspectives as equivalent 'a priori' axioms pass. You have let all of the important points of the idea go unchallenged and imply that I need to post Scripture relating baptism and priesthood.
It appears that your goal is simply to discount any ideas that are outside your preferred paradigm through endless, irrelevant argumentation.