John Trapp on Jeremiah 21:2

Ver. 2. Enquire I pray thee of the Lord for us] He ſeeketh now to the Lord, whom in his proſperity he regarded not: ſo doth a drowning man catch at the tree or twig, which before he made no reckoning of. Rarae fumant felicibus arae, In their affliction they will ſeek me early, Hoſ. 5. ult. When he ſlew them, then they ſought him, and enquired earely after God, Pſal. 78.34. Pharaoh when plagued, calleth earneſtly for Moſes to pray for him: and Joab when in danger of his life, runneth to the horns of the Altar.

If ſo be the Lord will deal with us according to his wondrous works] Or, it may be the Lord will deal with us, &c. ſc. As he did not long ſince with Hezekiah, when invaded by Sennacherib. Thus wicked wretches are willing to preſume, and promiſe themſelves impunity: See Deut. 29.19. with the Note.