The Bible affirms the sanctity of human life from conception until natural death. The ethical question of disconnecting a feeding tube from a patient in a Persistent Vegetative State (PVS) is one of the most difficult in bioethics, centering on the distinction between ordinary care and extraordinary means. Most major Christian traditions agree that artificially administered nutrition and hydration (a feeding tube) should be considered ordinary care (basic sustenance) and should generally not be withdrawn. However, if the feeding tube itself causes severe suffering, is failing, or the body is no longer able to assimilate the nutrients (making the feeding tube medically futile), Christian ethics may permit its withdrawal, allowing the patient to die naturally from the underlying condition. The ethical focus is on never intentionally c

The Bible emphasizes the sanctity and binary nature of the body (Genesis 1:27) and mandates prudence in making irreversible decisions. Gender-affirming surgery (which includes permanent surgical alteration of primary or secondary sex characteristics) for minors is ethically opposed by most orthodox Christian bodies because it is irreversible, highly invasive, and performed on individuals (children and adolescents) who lack the full cognitive maturity to consent to such life-altering procedures. The Christian response emphasizes addressing the underlying distress (gender dysphoria) through pastoral care, counseling, and spiritual support, rather than through permanent medical interventions that contradict the biological sex assigned by God.

The Christian perspective views human life as a sacred gift, but also a finite one, designed by God to conclude in physical death before an eternal state (Hebrews 9:27). The ambition to achieve indefinite biological immortality on Earth—often called transhumanism—raises profound ethical concerns. It risks devaluing the biblical hope of heaven, exacerbating social inequality (immortality for the wealthy), and ignoring the inherent spiritual problem of sin, which technology cannot solve. The Christian focus should be on eternal life through Christ, not indefinite earthly survival.  

The Bible does not directly address modern medical experimentation, but it establishes non-negotiable limits based on the sanctity of life (Genesis 9:6) and the command to love your neighbor (Mark 12:31). Biblical limits prohibit any procedure that intentionally destroys innocent human life (especially the vulnerable, like embryos) or violates the fundamental dignity of the person (Imago Dei). Medical research should always aim to heal and alleviate suffering, not harm.

The Christian view on IVF is divided. The Catholic Church condemns it for separating procreation from the marital act and destroying human embryos. Most Protestants conditionally accept it, provided the procedure uses the gametes of the married couple and includes a plan to protect the Sanctity of Life by minimizing the creation and destruction of excess embryos.