To lament is to express deep regret, grief, or sorrow. We can lament through words or actions. Lamenting is a common theme in the Bible. Which is why there is an Old Testament book named Lamentations. In it we see that God has given us an entire book of the Bible that teaches us how to navigate the valley of sorrow and loss.
The book of Lamentations is a house for sorrow and a school for compassion. Studying this book will help you better understand what it means to grieve and hope at the same time. It will help you be better equipped to live and serve in a suffering world, and it will encourage you to meet Christ on the path of sorrow.