Is it ethical to use technology to extend human life indefinitely?

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.