Final answer:
Psalms of lament do indeed cover three kinds of complaints, involving God, enemies, or the psalmists themselves, reflecting a range of human emotions and situations.
Step-by-step explanation:
It is true that psalms of lament can deal with three dimensions of complaint: against God, an enemy, or the psalmist himself. This broad theme is reflected in the various psalms found in the Bible where the psalmists expressed their deep sorrow and pleas for help during times of distress. They often questioned their situation or God's favor, expressed the feeling of being attacked by enemies, or mourned their own sins and failures. The Psalms provide a mixture of emotions and circumstances, ranging from personal grievances to societal injustices, showing us that such expressions of anguish have been part of religious and literary traditions for centuries.