Contradiction with Matthew 6:7
This verse advises against vain repetitions in prayer, whereas Lamentations 2:19 emphasizes crying out in persistent prayer.
Matthew 6:7: But when ye pray, use not vain repetitions, as the heathen [do]: for they think that they shall be heard for their much speaking.
Contradiction with Proverbs 21:13
This verse suggests that ignoring the cries of the poor can lead to one's own cries being ignored, while Lamentations 2:19 encourages calling out to God for help.
Proverbs 21:13: Whoso stoppeth his ears at the cry of the poor, he also shall cry himself, but shall not be heard.
Contradiction with James 5:13
This verse encourages the joyful to sing psalms, which contrasts with the sorrowful weeping and pouring out of heart in Lamentations 2:19.
James 5:13: Is any among you afflicted? let him pray. Is any merry? let him sing psalms.
Contradiction with Ecclesiastes 7:16
This verse warns against being overly righteous or overly wise, which could contradict the fervent righteousness in calling out to God in Lamentations 2:19.
Ecclesiastes 7:16: Be not righteous over much; neither make thyself over wise: why shouldest thou destroy thyself? [destroy...: Heb. be desolate?]
Paradox #1
The possible contradiction in that verse is the emphasis on punishment and suffering, which might conflict with the idea of a compassionate and forgiving God. Some people might find it difficult to reconcile the call to pour out one's heart in sorrow with the expectation of a loving and understanding deity.