Without the shedding of the blood of the Lord Jesus Christ—the chosen, appointed, and excellent Only Mediator of God’s elect—our hopeless state, as sinners, would be forever fatal.

In recent days I’ve been thinking lots on blood—the oxygen-carriage method in the stupendous, miraculous, circulatory system is a fearful wonder of the Creator.

I could write for hours on platelets—those little, sticky, microscopic, discs that plug holes in veins so that we don’t bleed to death from knife-cuts or pin-pricks.

Alternatively, thirteen biochemical factors which contribute to the cascade of clot-formation would have me wax lyrical before I arrived at the Compliment system.

Again, the breathless brilliance of plasma, and an immunological system of hungry phagocytes, antibody-factory lymphocytes, not to mention killer-T cells of infinite complexity, all serve to expose “by chance” thinking as naïve, ignorant, ridiculous, hollow, insubstantial and blind.

My focus, however, has been on the humble Red Blood Cells: that component of the vascular system, designed by God for the function of gas-exchange. these streamline, biconcave, discs, with maximum surface-to-volume ratio, are packed with iron-bearing proteins otherwise known as oxygen-loaded hemoglobin (if I have oversimplified things too much please accept my apologies in advance).

Yet, not even this made me stand back and sit up this week: rather, it is the related issue of surface molecules on Red Blood Cells—called Antigens—which determine Red Cell Blood Groups.

The basic system of Blood Groups is divided into 4 (omitting the Rhesus Factor): Group A has Antigen A, Group B has Antigen B, Group AB has both Antigens A and B, and, last of all, the most common Blood Group O, has no Antigens at all—an amazing fact, and a genius stroke, of our Creator Christ (as we shall shortly see).

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