Lamentations 4:15
They cried unto them, Depart ye; it is unclean; depart, depart, touch not: when they fled away and wandered, they said among the heathen, They shall no more sojourn there.
Cross-reference
Lamentations 1:8
Parallel
Lamentations 1:8 describes Jerusalem becoming unclean and despised — directly parallel to the 'unclean' cry here.
Lamentations 3:45
Parallel
Lamentations 3:45 says God made them scum and refuse among nations — direct parallel to being treated as unclean.
Leviticus 13:45
Allusion
Leviticus 13:45 prescribes the cry 'Unclean, unclean' for lepers—exactly what people cry in Lamentations 4:15.
Leviticus 26:33
Prophetic fulfillment
Leviticus 26:33 prophesies scattering among nations; Lamentations 4:15 depicts that scattering happening.
Zechariah 8:13
Contrast
Zechariah 8:13 recalls that Judah was a curse among nations, then promises blessing — contrasts the curse here with future restoration.