The Greek verb anakrazo means "to cry out suddenly" or "to shriek aloud." It is used in the Gospels to describe the sudden cries of people with unclean spirits when confronted by Jesus.
The anakrazo of the demonized in Jesus' presence is theologically revealing. In Mark 1:23, the unclean spirit cries out in the synagogue — Jesus' authority penetrates even spaces where evil has taken residence. The shriek of the unclean spirit is the sound of a kingdom colliding: the kingdom of God advancing, the kingdom of darkness fleeing. Jesus' word silences the cry and liberates the captive.