That's who we should all identify with. Because apart from God's grace, this is where we would all be standing, and we're only flattering ourselves to think otherwise. Unless you see yourself standing there with the shrieking crowd, full of hostility and hatred for the holy and innocent Lamb of God, you don't really understand the nature and depth of your sin or the necessity of the cross.
As the shouts and screams from the mob grow in volume, what's it like for our Lord to look out upon these people? Even if you can't recognize yourself among the angry faces, or distinguish your own strident voice ... He can. And in response to those sinful shouts and curses from you and me, Jesus yields to the sentence of death....
But convicting you of sin is not my ultimate purpose here; rather, I want to convince you of grace. For when you're deeply aware of your sin, and of what an affront it is to God's holiness, and of how impossible it is for Him to respond to this sin with anything other than furious wrath — you can only be overwhelmed with how amazing grace is.
Only those who are truly aware of their sin can truly cherish grace.
I picked up this quote from an article by Carolyn McCulley entitled Cherish Grace which describes the Crucifixion from the perspective of Mary Magdalene. Take a few moments to read it; you'll be glad you did.