Jeremiah is providing us a blueprint for how to pray, how to express our pain and suffering an burden to God. It is very similar to the patter we see in Psalm 22:


My God, my God, why have you forsaken me?
Why are you so far from saving me, from the words of my groaning?
2 O my God, I cry by day, but you do not answer,
and by night, but I find no rest.
3 Yet you are holy,
enthroned on the praises[a] of Israel.

David is expressing his pain and at the same time acknowledges that God is worthy of praise. We will look at this in more detail in Bible study later this week, but what's clear is that Jeremiah is inspired by and keeping to the pattern established by David. This is a formula we can look to. Relationships are based on communication and expressions. What the authors of Psalms and Jeremiah are doing to showing us how to continue to build our relationship with God. Take the time to express your pain and anguish. What do you feel, why do you feel that way, how have your experienced your pain or difficulty, where is this happening and then what would you like God to do about it.

Psalms 22 Prophetic psalm verse 1 is quoted by Jesus on the cross (Eli, Eli, lama sabathani). Verse 18 more prophecy, “They part my garments among them and cast lots…” When Jesus is stripped the roman guard parted his garments and cast lots. Does this psalm prove the connection between David and God that God would give David this kind of insight?
Matthew Henry
In this psalm he speaks, I. Of the humiliation of Christ (v. 1–21), where David, as a type of Christ, complains of the very calamitous condition he was in upon many accounts. 1. He complains, and mixes comforts with his complaints; he complains (v. 1, 2), but comforts himself (v. 3-5), complains again (v. 6-8), but comforts himself again, (v. 9, 10). 2. He complains, and mixes prayers with his complaints; he complains of the power and rage of his enemies (v. 12, 13, 16, 18), of his own bodily weakness and decay (v. 14, 15, 17); but prays that God would not be far from him (v. 11, 19), that he would save and deliver him (v. 19–21). II. Of the exaltation of Christ, that his undertaking should be for the glory of God (v. 22–25), for the salvation and joy of his people (v. 26–29), and for the perpetuating of his own kingdom (v. 30, 31). In singing this psalm we must keep our thoughts fixed upon Christ, and be so affected with his sufferings as to experience the fellowship of them, and so affected with his grace as to experience the power and influence of it.