From the Definition of Chalcedon (451 AD). Our Lord Jesus Christ is “like us in all ways, but without sin”.
The Divine Logos, the only-begotten Son of the Father, when assuming humanity did not merely wear humanity like a mantle or a costume. He became fully, entirely, totally human in every way. The only way the Lord was different from us is that He was entirely without sin.
Like all human beings, our Lord experienced pain, including emotional pain. The death of a friend doesn’t become less painful, even though we–with the confidence of faith–know that death is not the end, that those who are in Christ will come through the other side of death to the resurrection of the dead. So, here, our Lord too felt the simple and ordinary pain of the death of a friend–he experienced and empathized with the grief of those mourning. Our Lord was not a stoic, He wasn’t like a Vulcan from Star Trek–but stood in the midst of suffering and felt it. The emotional suffering of Lazarus’ family, His own pain from the death of a friend, He stood in it, knew it, empathized with it–because He was not an outsider of the human experience, but a full real human being. Even as He remained truly and really God.
As St. Ignatius of Antioch says in his famous poem,
”He that was impassable became passable.”
Passability is the capacity to suffer, to experience pain, to be affected. God, in His Eternal Divinity is impassable–we can’t hurt Him or affect Him. He is Eternally Immutable, “I, the LORD, do not change” “In Him there is no shadow of turning” etc. Yet Christ, being fully God and fully human was passable–He not only could suffer, He did suffer: He bore the suffering and shame of the Cross, He was beaten, cursed, and nailed to the Cross and He bled, in pain, and died for you and for me. So God, who cannot suffer, suffered because Christ our God is truly human.
So we see that too here at Lazarus’ tomb. We see it also on the night He was betrayed when He was in Gethsemane praying. We see it time and again, the God-Man who feels, who knows, who stands in our midst–in our hurt and even in our ugliness. And His response to us is love, mercy, forgiveness, and the superabundance of His own Divine Generosity.