When a lesion or impurity on a garment diminishes after washing, the garment needs to be washed a second time before being deemed pure (13:58). What is the significance of washing garments twice?
Rav S. R. Hirsch comments that two washings are required because the first rids the garment of impurity, while the second purifies it. Rav Moshe Feinstein adds that these cleanings apply to people as well. We can understand from these explanations that being pure and good doesn’t mean not doing bad things, just like having a positive life doesn’t mean that nothing negative happens. Having a good life or being a good person is not the absence of negatives, but a commitment to proactively increase our positive efforts.