John 3:5 And The Old Man / New Man Analogy

The OldMan/NewMan, OldCreature/NewCreature concept (e.g., Eph 4:22,24, Col 3:9,10, Rom 6:6, Gal 6:15, II Cor 5:17) is but an extension of the "born again" concept. Rom 6:3-6 shows that the death of the old man of sin, and the resulting birth (resurrection) of the new man happens at baptism. Here's how:· "our old man is crucified" (verse 6) - when we are “planted together (with Jesus) in the likeness of his death” (verse 5) – “planted … in the likeness of his death” has to be immersion in water, meaning, water baptism looks like a burial and resurrection, right?· we begin our "walk in newness of life" at baptism according to verse 4Here is the point: Since Rom 6:3-6 teaches the Old Man / New Man transition happens at the time one is baptized in water, it confirms the new birth of John 3:5 happens at the time one is baptized in water since it really is the same analogy. So John 3:5 becomes another verse that conclusively proves a sinner has to be baptized to be saved.