John 8:1-12

Pharisees present a woman caught in adultery and demand an answer from Jesus, what should be done with her.  They don't care about her, they are out to trap and take down Jesus.  He writes in the dirt (see Jeremiah 17:13 below, note the living waters connects with 7:37-39) and says anyone without sin can throw the first stone, to call out their hypocrisy.  When they leave, He comforts and convicts her: you have no more accusers, but do not sin anymore.

Jeremiah 17:13 - "O LORD, the hope of Israel, All who forsake You shall be ashamed.  “Those who depart from Me shall be written in the earth, because they have forsaken the LORD, the fountain of living waters.” "

Application

This passage is often used to assert that we should never accuse, charge or correct anyone with sin, since we aren't perfect ourselves.  But Scripture contradicts this in 1 Corinthians 5.

Accusations are often made for selfish reasons, when the intent of correction needs to be for the good of the person in sin.  "Brethren, if a man is overtaken in any trespass, you who are spiritual restore such a one in a spirit of gentleness, considering yourself lest you also be tempted." - Galatians 6:1