This is basically Habakkuk’s prayer written like a hymn or a Psalm.
A prayer (of thanksgiving) of Habakkuk the prophet, on Shigionoth (or shiggaion most likely meaning a poem with intense feeling or a song delivered in the greatest excitement). In this case, a strong cry for justice against sin.
2 O LORD, I have heard your speech (Your revelation to me concerning the coming chastisement of the Jews, and the destruction of their oppressors) and was afraid (trembled at the realisation of these sad things, which both we and they were to suffer); O LORD, revive (keep alive, refresh, renew) Your work (freeing and returning the captives) in the midst of the years! In the midst of the years (70 years of trouble and sadness) make it known (make it known that You are our God, and we your people, that you still care for us); In wrath (great anger) remember mercy (let your people see Your grace and mercy towards them).
