John 19:34

One of the soldiers - One of those appointed to watch the bodies until they were dead. This man appears to have doubted whether he was dead, and, in order to see whether he was not yet sensible, he pierced him with his spear. The Jews designed that his legs should be broken, but this was prevented by the providence of God; yet in another way more satisfactory proof was obtained of his death than would have been by the breaking of his legs. This was so ordered, no doubt, that there might be the fullest proof that he was truly dead; that it could not be pretended that he had swooned away and revived, and so, therefore, that there could not be the least doubt of his resurrection to life.

With a spear - The common spear which soldiers used in war. There can be no doubt that such a stroke from the strong arm of a Roman soldier would have caused death, if he had not been already dead; and it was, doubtless, to furnish this conclusive proof that he was actually dead, and that an atonement had thus been made for mankind, that John mentions so particularly this fact. Let the following circumstances be remembered, showing that death must have ensued from such a wound:

1. The Saviour was elevated but a little from the ground, so as to be easily reached by the spear of a soldier.

(2)The wound must have been transversely upward, so as to have penetrated into the body, as he could not have stood directly under him.

(3)It was probably made with a strong arm and with violence.

(4)The spear of the Roman soldier was a lance which tapered very gently to a point, and would penetrate easily.

(5)The wound was comparatively a large wound. It was so large as to admit the hand John 20:27; but for a lance thus tapering to have made a wound so wide as to admit the hand, it must have been at least four or five inches in depth, and must have been such as to have made death certain. If it be remembered that this blow was probably in the left side, the conclusion is inevitable that death would have been the consequence of such a blow. To make out this fact was of special importance, probably, in the time of John, as the reality of the death of Jesus was denied by the Gnostics, many of whom maintained that he died in appearance only.

Pierced his side - Which side is not mentioned, nor can it be certainly known. The common opinion is that it was the left side. Car. Frid. Gruner (Commentatio Antiquaria Medica de Jesu Christi Morte, 30-36) has attempted to show that it must have been the left side. See Wiseman’s Lectures, pp. 161, 162, and Kuinoel on John 19:34, where the arguments of Gruner are fully stated. It is clear that the spear pierced to the region of the heart.

And forthwith came ... - This was evidently a natural effect of thus piercing the side. Such a flowing of blood and water makes it probable that the spear reached the heart, and if Jesus had not before been dead, this would have closed his life. The heart is surrounded by a membrane called the pericardium. This membrane contains a serous matter or liquor resembling water, which prevents the surface of the heart from becoming dry by its continual motion (Webster). It was this which was pierced and from which the water flowed. The point of the spear also reached one of the ventricles of the heart, and the blood, yet warm, rushed forth, either mingled with or followed by the water of the pericardium, so as to appear to John to be blood and water flowing together. This was a natural effect, and would follow in any other case. Commentators have almost uniformly supposed that this was significant; as, for example, that the blood was an emblem of the eucharist, and the water of baptism, or that the blood denoted justification, and the water sanctification; but that this was the design there is not the slightest evidence.

It was strictly a natural result, adduced by John to establish one fact on which the whole of Christianity turns that he was truly dead. On this depends the doctrine of the atonement, of his resurrection, and all the prominent doctrines of religion. This fact it was of importance to prove, that it might not be pretended that he had only suffered a syncope, or had fainted. This John establishes. He shows that those who were sent to hasten his death believed that he had expired; that then a soldier inflicted a wound which would have terminated life if he had not been already dead; and that the infliction of this wound was followed by the fullest proof that he had truly expired. On this fact he dwells with the interest which became a subject of so much importance to the world, and thus laid the foundation for undoubted assurance that the Lord Jesus died for the sins of men.