This is a most beautiful and gracious observation of the Lord's, to show, what might be reasonably expected, from the overwhelming kindness of the Lord. When grace becomes more abundant, it overpowers our sin, disarms the sinner, and constrains him, as the Prodigal in the parable, to return to his Father. Luke 15:17-19.
Related Commentaries of Jeremiah 3:4
Jeremiah 3:4-5
4 Wilt thou not from this time cry unto me, My father, thou art the guide of my youth?
5 Will he reserve his anger for ever? will he keep it to the end? Behold, thou hast spoken and done evil things as thou couldest.