The Blood That Changes Everything

In a bone marrow transplant, something remarkable happens. The recipient's diseased marrow is first destroyed through chemotherapy — a painful, exhausting process that strips the body down to almost nothing. Then donor stem cells are infused into the bloodstream, where they migrate to the bone cavities and begin producing entirely new blood cells.

Here is the part that astonishes even seasoned hematologists: within weeks, the recipient's blood type can actually change. If the donor was Type A and the recipient was Type O, the recipient becomes Type A. Their blood — the very substance that carries life through every vessel and organ — is no longer their own. Dr. John DiPersio of Washington University School of Medicine has described this engraftment process as one of the most complete biological transformations in all of medicine. The old blood-forming system is gone. A new one has taken its place.

Paul wrote to the Corinthians, "If anyone is in Christ, the new creation has come: the old has gone, the new is here." This is not decoration. This is not improvement. This is replacement at the deepest level.

Transformation in Christ follows a similar pattern. The old self must be surrendered — and yes, that surrender is painful. But what God implants in us is not a patch or a repair. It is an entirely new life, coursing through us, remaking us from the inside out.

You do not merely get better. You become new.