John Trapp on Jeremiah 3:21

Ver. 21. A voyce was heard upon the high places] Where they were wont to worſhip Idols, now they weep for their ſins, and pray for pardon.

For they have perverted their wayes] This is it that now draweth from them prayers and teares. See Chap. 31.18. Lam 5.14 Oi nalanu, chi chattanu. Wo worth us, that ever we thus ſinned. Some underſtand thoſe words, A voyce is heard, as ſhewing Gods readineſs to hear penitent ſinners ſo ſoon as they begin to turn to him, even before they ſpeak, as the Father of the Prodigal met him. &c.