I appreciate the effort you've put into the Greek, but your conclusion still requires you to reverse Peter's own structure. The issue is resolved by walking through the text as Peter gives it, not as later theology wants it to be.
You keep equating "baptism" with water, but Peter explicitly separates the two. Peter says: "not the removal of dirt from the flesh." That phrase refers to literal water baptism, because washing dirt off a body is the only thing water baptism physically does. If Peter meant water baptism saves, this would be the most confusing way possible to express it. Your interpretation requires all 3 of these to be true at the same time: "baptism saves," "not the physical washing," but actually "the physical washing is required." That crumbles under its own weight.
Peter defines the saving element as the appeal, not the ritual. Peter's definition is: "but the appeal of a good conscience toward God". This is: internal, volitional, faith based, moral. It is not: water, immersion, ritual, external action. You keep saying "baptism is the appeal," but Peter says the opposite: not the external washing, but the internal appeal. You're merging the 2. Peter is separating them.
You're importing Acts 22:16 into 1 Pet 3:21, but the grammar doesn't support your use of it. Acts 22:16: wash away your sins, calling on the name of the Lord. The participle (calling) is the operative action.
The washing is tied to the calling, not the water. You're using Acts 22:16 to override Peter's own explanation. Peter doesn't need Paul to clarify him, Peter clarifies himself.
You say "baptism is the appeal," but Peter says the appeal is what baptism is not. Peter's contrast is: NOT the external washing BUT the internal appeal. You're collapsing the contrast Peter is making. Peter is distinguishing: the outward ritual (not saving), the inward appeal (saving). You're merging them into 1 saving event. Peter is separating them into 2 different categories.
You appeal to "the preponderance of the evidence," but Peter's own sentence contradicts your conclusion. You said: "I think the preponderance of the evidence is for water." But in this passage: Peter denies the physical washing, Peter defines the saving element as internal, Peter grounds the saving power in the resurrection & Peter uses Noah's water as judgment, not salvation. Your conclusion requires: water = salvation, Peter = unclear, resurrection = secondary. Peter's conclusion is: water = judgment, ark = salvation, , appeal = the saving response, resurrection = the saving power. Your reading reverses every part of Peter's structure.
Your "forest through the trees" argument is not exegesis. You said you read 91 baptism verses & a 2,000‑page treatise & concluded baptism is required. But none of that changes what Peter actually wrote. Volume of reading ≠ correctness of interpretation. Peter's own clarifications—not 91 verses, not a treatise—govern 1 Peter 3:21.
The core issue remains untouched. Peter says: NOT the physical washing, BUT the appeal, through the resurrection. You say: the physical washing is required, the appeal happens during the washing, the resurrection is part of the package.
Those are not the same thing. Your interpretation requires Peter to be unclear. Peter's own words are not unclear.
To make 1 Peter 3:21 teach water regeneration, you must: reverse the flood imagery, ignore Peter's denial of physical washing, redefine "appeal of a good conscience & relocate the saving power from the resurrection to the baptistry. Peter's own clarifications eliminate that interpretation.
Last paragraph first. I don’t believe water regenerates; if you think I do from what I said, then you’ve misunderstood me.
Water does not save. The saving element is the appeal of a good conscience directed to God through the resurrection of Jesus Christ, and baptism is the physical act through or during which that appeal is expressed.
In effect, baptism = appeal, not in the sense that the water itself accomplishes salvation, but as the occasion in which the internal appeal is outwardly enacted.
Peter’s statement “not the removal of dirt from the flesh” negates the salvific power of external washing, not the ritual itself; treating this contrast as meaning water baptism is denied and baptism has nothing to do with water is a false equivalence.
Baptism is a much deeper, richer act than merely being dipped in water, and its full significance includes the outward enactment of the inward response to God.
The comparison to Acts22:16 illustrates this: be baptized and wash away your sins by calling on the name of the Lord, not by the water. The calling is the means, not the water, yet it is performed in coordination with the water. Similarly, Peter’s statement is that baptism/appeal saves, and the resurrection remains the source of saving power.