The chapter can be divided into four main parts:
Remembrances of better days (Lamentations 4:1–11)
The sins of prophets and priests (Lamentations 4:12–16)
A vain search for help (Lamentations 4:17–20)
Edom's coming punishment (Lamentations 4:21–22).1
Another very similar suggestion is as follows:
Zion's continuing torment (Lamentations 4:1–10)
Rejection by the Lord (Lamentations 4:11–16)
Helpless is man's aid (Lamentations 4:17–20)
The destiny of Edom and Zion (Lamentations 4:21–22).2
1 Eh quoi! l'or a perdu son éclat! L'or pur est altéré! Les pierres du sanctuaire sont dispersées Aux coins de toutes les rues!