Who - Asaph writes a lament to the LORD.
What - The psalmist is lamenting to the LORD at the destruction of Israel and and the death of many Israelites at the hands of foreign invaders.
When - The Psalmist does not specifically say when this happened, but the description only fits the Babylonian conquest and exile.
Where - Unstated, but most likely Jerusalem.
Why - The psalmist acknowledges the sins of the nation that have caused this destruction and it is the LORD’S anger poured out on them. The psalmist is asking the LORD to relent and repay the hostile invaders.
