Truly God and truly man
The Chalcedonian definition unpacked
The Chalcedonian definition lands in the middle of a debate that has been running for a century, but what it says has implications that reach in every direction — backward to the gospels and forward to every Christian who will ever try to understand what prayer means, what salvation means, what the resurrection promises.
If Christ is truly human — complete in humanity, possessed of a rational soul and body, like us in all respects except sin — then the incarnation is not a costume. God did not put on a human suit and walk around performing divinity. He entered fully into the human condition: the hunger, the exhaustion, the grief at Lazarus's tomb, the sweat in Gethsemane, the thirst on the cross. All of it real. All of it his.
This means the suffering of Jesus is not theatrical. It means the death of Jesus is not a drama staged for theological effect. It means that when the psalmist cries out My God, my God, why have you forsaken me, Jesus says those words from inside the condition they describe — not merely performing desolation but experiencing it.
And if Christ is truly divine — of one being with the Father, the eternal Son through whom all things were made — then what happened on the cross has infinite weight. It is not a good man dying for a cause. It is the creator entering his own creation at the point of maximum fracture and absorbing what the fracture costs.
Truly God. Truly man. The two together are what salvation requires.
“The same one is perfect in divinity and perfect in humanity, truly God and truly human.”
— Definition of the Council of Chalcedon, 451 AD
“For we don't have a high priest who can't be touched with the feeling of our infirmities, but one who has been in all points tempted like we are, yet without sin.”
He has been where you are. This is what Chalcedon is trying to protect.
Not a distant divine being who observes human suffering from outside it, but one who entered it fully — who knows hunger and grief and fear and the specific weight of being misunderstood by the people you love.
The writer of Hebrews says he is able to sympathize with your weaknesses because he has shared them. This is not metaphor. It is the implication of the Chalcedonian definition made personal.
Whatever you are carrying today — he has carried. Whatever has broken you — he has been broken by. He is not outside your experience looking in. He is inside it, able to sympathize because he has been there.
Does the way you pray reflect that?