I was a hospice nurse for over 5 years, and the best input a counselor gave to a family that just could not withdraw life support in that God might perform a miracle, was to tell them that God does not need a ventilator or vasopressors to do it. We as mere humans can only make informed decisions with the best of loving intentions; God can perform a miracle if it is meant to be, regardless. I felt that both validated their belief system and empowered God in their eyes. She also discussed that while we do not have to prepare for a miracle, God is in control of that either way, we do have to prepare if there is not one. I thought it was compassionate and sage advice.