Jeremiah had a ringside seat in the arena of this reform. It is hardly conceivable, though, that he remained a spectator. He was not the sort of person to stand on the sidelines. He helped. He participated in the reform with his preaching. We have fragments of his sermons.
“You’ve solicited many lover-gods, like a streetwalking whore chasing after other gods” (Jer 3:2). The people had abandoned the God who loved and called them into being and had given themselves in reckless prodigality to every god and goddess they met. Moral pollution works the same way as environmental pollution. The waste products are careless living work insidiously into the soil of thought and the streams of language, poisoning every part of society.
Jeremiah pleaded with them: “Plow your unplowed fields” (Jer 4:3). Superstition and idolatry form a tough crust that makes us insensitive and unreceptive to the word that God speaks in mercy and salvation. Ploughing is a metaphor for the repentance that prepares the ground of our heart to receive what God has for us.”
Jeremiah was scathing and sarcastic: “And you, what do you think you’re up to? Dressing up in party clothes, … putting on lipstick and rouge and mascara! Your primping goes for nothing” (Jer 4:30).
Through it, all Jeremiah conveyed hope: “Ho stand at the crossroads and look around. Ask for directions to the old road, the tried-and-true road. then take it. Discover the right route for your souls” (Jer 6:16). There are old paths, well-trodden and clearly marked, that lead to goodness and to God. The Scriptures–in this case the Deuteronomy scroll–map the roads. If we ignore them, we stumble over obstacles. Jeremiah’s preaching was tireless in insisting on the plain, obvious truth: that God is among us, that we can and must live in faithful love with him.”