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What Does the Bible Say About..Blood and Water?

When Jesus' flesh was pierced and he bled blood and water, did he bleed blood and water together or was it something seperate, and if he did bleed blood and water together,how was one able to tell the difference?


John 19:34 says, “But one of the soldiers with a spear pierced his side, and forthwith came there out blood and water.” John goes on to say he was an eyewitness to this event. Had it been Luke, a physician, he might have described it differently.

Several doctors have written clinical descriptions of the crucifixion. It is generally agreed that there would have been a buildup of clear fluid caused by cell breakdown. This would have begun with the beating the Roman soldiers gave Jesus. It may have been supplemented by cell damage resulting from the trauma of the crucifixion itself. One doctor says that fluid in the pericardial sac (around the heart) and in the lungs would have been a normal result of the difficulty in breathing caused by crucifixion.

When the soldier stabbed Jesus he would likely have pierced the lungs and the heart. As a result, the wound would flow with both blood and this watery fluid. As a physician Luke might have used a word other than water, but a layman like John would see blood and what appeared to be water flow out at the same time, not necessarily mixed. If the fluids did mix, the blood would appear diluted, and an observer could still describe it as blood and water.