What in the heck are you talking about. You're the one who brought up "holy water". Only Catholics say that you need "holy water" to baptize someone.
No I’m wondering how the act of baptism can differenciate between who is a lutheran...or a methodist...or a protestant....or a catholic...
Same water...same god....yes?
So what makes the baptism different?
How does one become baptised as a lutheran?
Does it only matter upon who is doing the baptism?