The verses they cite — read them in context.
Genesis 9:4
"You shall not eat flesh with its life, that is, its blood."
Leviticus 17:14
"You shall not eat the blood of any creature."
Acts 15:28-29
"Abstain from... blood... and from what has been strangled."
Reading Acts 15 in context, is the concern about eating blood in a pagan-idol setting — or about modern medicine?
Debate doesn’t change minds. If you find yourself arguing, pivot to telling your story of how Jesus changed you, saved you, and protected you.
Does "abstain from blood" forbid a life-saving medical transfusion?
The command to "abstain from blood" (Acts 15:29) addressed eating blood — a dietary and idol-related concern in the early church — not modern medical transfusion, which did not exist. Jesus consistently taught that mercy and the saving of life take priority over ritual rules (Mark 2:27; Matthew 12:11-12). Scripture does not forbid a life-saving transfusion.
Reading Acts 15 in context, is the concern about eating blood in a pagan-idol setting — or about modern medicine?
If God "desires mercy" and Jesus prioritized saving life over ritual rules, would He require refusing a treatment that saves a life?