Passage
Day and night they go about it upon the walls thereof: Iniquity also and mischief are in the midst of it.
Day and night they go about it upon the walls thereof: Iniquity also and mischief are in the midst of it.
Psalms 55:8 I would haste me to a shelter From the stormy wind and tempest.
Psalms 55:9 Destroy, O Lord, [and] divide their tongue; For I have seen violence and strife in the city.
Psalms 55:10 Day and night they go about it upon the walls thereof: Iniquity also and mischief are in the midst of it.
Psalms 55:11 Wickedness is in the midst thereof: Oppression and guile depart not from its streets.
Psalms 55:12 For it was not an enemy that reproached me; Then I could have borne it: Neither was it he that hated me that did magnify himself against me; Then I would have hid myself from him:
The verse centers on "night", "upon", "walls", "thereof", "iniquity", "mischief", and "midst". It is saying that the verse draws attention to "night" and "upon", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "Destroy O Lord and divide their tongue..." into verse 11's "Wickedness is in the midst thereof Oppression...", so "night" and "upon" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "night" and "upon" with trust shaped by these words, not by a vague optimism outside the passage.