It may be they will present their supplications Hebrew, תפל תחנתם לפני יהוה, peradventure they may prostrate themselves in supplication before Jehovah; or, more literally, their supplication may fall before Jehovah, which, undoubtedly, says Blaney, “respects the humble posture of the supplicant in presenting it:” see note on Jeremiah 36:3. In the subsequent part of the verse, the words anger and fury (or, wrath, as החמה, should rather be rendered) are put by a metonymy for the effects of them, namely, the heavy judgments which, in consequence thereof, Jehovah had denounced against this people. We learn from this verse that prayer and reformation are the most likely means that can be used to turn away God's wrath when it is ready to fall upon a sinful nation.
Related Commentaries of Jeremiah 36:7
Jeremiah 36:7-8
7 It may be they will present their supplication before the LORD, and will return every one from his evil way: for great is the anger and the fury that the LORD hath pronounced against this people.
8 And Baruch the son of Neriah did according to all that Jeremiah the prophet commanded him, reading in the book the words of the LORD in the LORD'S house.