Abstract
According to the orthodox Christian belief expressed most famously at the Council of Chalcedon in 451, Jesus Christ is one person who is both divine
and human. Not surprisingly, many have wondered at this, for it seems impossible for one person to have both divine and human characteristics.
There are different versions of this difficulty, which correspond to different human and divine characteristics. In this article, I will defend
traditional Christology against an argument that bases itself on one particular difficulty. The argument contends that Christ's omniscience and
non-omniscience mean that he cannot be one person; it contends, in short, that Chalcedon is self-undermining. I will begin by making some preliminary
remarks. In the second section of the paper, I will show that the anti-Chalcedonian argument cannot simply be avoided or ignored. In the third section, I will examine the argument itself.