New Defender's Study Bible Notes
20:30 cleanseth away evil. The translation here is difficult, and this verse has sometimes been misused to justify heavy flogging of sinners. The essence, however, seems to be an analogy. As the infection in a wound is cleansed by the blood flowing through it, so God’s chastening (or a father’s chastening) will, if rightly applied, remove evil thoughts and behavior from the life.