Reformation vs Regeneration

Today’s Through the Bible Reading: Jeremiah 2 - 4

Is there a difference between reformation and regeneration? Today's reading marks a clear distinction between the two. 

Although you wash yourself with soap and use an abundance of cleansing powder, the stain of your guilt is still before me,” declares the Sovereign LORD. Jeremiah 2:22

At this point in Israel’s history they had a king who loved God. King Josiah was one of the few kings that followed God wholeheartedly. He tore down the idols and destroyed the high places. King Josiah followed God and loved Him. The people loved King Josiah and followed his lead by trying to comply outwardly, but their hearts were still far from God.