Ps 57 5 Be exalted, O God, above the heavens;
let your glory be over all the earth."

We believe that Christ incarnation was His descent into hell. He is describing the conditions of that Christ experienced in this world.  4I am in the midst of lions; I lie among ravenous beasts- men whose teeth are spears and arrows, whose tongues are sharp swords. The eternal Son took on flesh descended into the culture of destruction. Every intent of the heart of man was intended to bring death and destruction. Christ came from the perfect communication of the Trinity to the violent culture of threats and violence of sin and destruction. He was put into the hands of men who have designed a world of threats and violence 6 They spread a net for my feet- I was bowed down in distress. They dug a pit in my path- but they have fallen into it themselves. Selah

The world is a place where men practice evil cursing.4b men whose teeth are spears and arrows, whose tongues are sharp swords. They desire to destroy their neighbor. So the world is a life and death struggle This is why the law pronounces death to all lawbreakers.6They dug a pit in my pathbut they have fallen into it themselves. Selah The Psalmist is teaching that all men plan and devise the scheme to destroy their neighbor. The only reason that we are protected from being harmed is that Christ became the curse for us. The curses we pronounce are only effective because Christ exposed Himself to the violence that we deserved. Christ chose not to defend Himself in the curse in order to take the curse that we deserved. Our defense in pronouncing the curse is successful because Christ exposed Himself to the curse of the wicked.This is why the Psalmist is pronouncing Gods glory over all the earth. Christ took  the curse so that we could be confident in the defense of the curse of the law.
The Psalmist is comparing Christ familiarity in being exposed to the violence of this world as the Psalmist experiences the these threats and schemes. We live in a world where we are exposed to the threats and schemes of men. As we face these evils on a daily basis we can be confident that God has destroyed the evil curses by Christ work in fulfilling the law. His cry of dependence is the only sure defense of the Psalmist. Be exalted oh Lord , let your glory fill the earth.