O Key of David

O Key of David, O royal power of Israel, controlling at your will the gate of heaven: come, break down the prison walls of death for those who dwell in darkness and the shadow of death, and lead your captive people into freedom.

In this extended petition, we ask that Christ may use his key to unlock the prison of sin ("darkness and death") to which all human beings are subject. More specifically, we ask that he may free us from the prison of selfish attachments to which all of us are prone.