I believe in the Bible, too. I also believe in an afterlife. I've watched loved ones pass on and my faith in God and gotten me through those times. When the Lord calls you home, it's time -- regardless of how much those left behind would wish otherwise.
When my Uncle Bill and my Aunt Liz were on life support, we ended it. Being kept alive with a machine is artificially prolonging life.
But my Aunt Wanda was never on life support. She was never on a machine. She lived for 40 years in a PVS. We would never had thought about starving and dehydrating her to death.