I think Jesus wrote “FORGIVE” on the ground.
So many people want to condemn that woman because of her adultery sin according to the law. Jesus didn’t break the law, He knows what kind of sin did that woman commit. But love fulfill the law–she committed sin, however it’s not your position to condemn, there is only one who can condemn, but Jesus choose to forgive her. He PAID THE PRICE.
Jesus He want to teach us to FORGIVE each other in our life. FORGIVE IS LOVE.