It is quite another for them to ask you to allow them to experiment on you with attempts to "do better" at what split you in half the first time.
Each person gets to choose what she can handle.
But I don't believe we are required, by a god or man, to offer ourselves, sutures still loose and vulnerable, to be open to "do-overs" by those who cut us.
Do you believe in a god that can heal anything? I don't say you're wrong.
Do you believe in a god or power that offers supernatural power and healing? I won't argue that point either.
But if you believe god heals like a master physician, what physician tells you to re-cut what they just bound up?
No doctor i'd trust.
No god i'd follow.
Today I feel offended that someone would dare ask that of another person. And to add God's name and imply it's God's Will is, at best, a misguided interpretation of theology. At worst, it is a heretical disvaluing of another person's humanity.
Those who abuse and insinuate any debt or understanding owed by the person harmed, shame on you.
Your only place is to ask questions.
You don't need to make any more statements. Your words are licks from a snake's tongue, and if you're lucky, your god will have mercy on you.