You've taught that Adam was the first in the line of Melchizedekian priests and that Abram tithed to someone of that priesthood. Wouldn't Abram have been the priest at the time that he tithed? Weren't his father and grandfather already dead by then?
Q: How do you know all these things about Melchizedek?
A: The answer to these questions is bit technical so bear with me on the explanation.
There are essentially three clues that helped me connect the dots.