John 8:1 But Jesus went to the Mount of Olives. 2 Now early in the morning He came again into the temple, and all the people came to Him; and He sat down and taught them. 3 Then the scribes and Pharisees brought to Him a woman caught in adultery. And when they had set her in the midst, 4 they said to Him, "Teacher, this woman was caught in adultery, in the very act. 5 "Now Moses, in the law, commanded us that such should be stoned. But what do You say?" 6 This they said, testing Him, that they might have something of which to accuse Him. But Jesus stooped down and wrote on the ground with His finger, as though He did not hear. 7 So when they continued asking Him, He raised Himself up and said to them, "He who is without sin among you, let him throw a stone at her first." 8 And again He stooped down and wrote on the ground. 9 Then those who heard it, being convicted by their conscience, went out one by one, beginning with the oldest even to the last. And Jesus was left alone, and the woman standing in the midst. 10 When Jesus had raised Himself up and saw no one but the woman, He said to her, "Woman, where are those accusers of yours? Has no one condemned you?" 11 She said, "No one, Lord." And Jesus said to her, "Neither do I condemn you; go and sin no more."

In this very familiar section of Scripture we will see that God is a forgiving God and He is willing to forgive us too if we will only repent of our sins and come to Him as the only way to really be forgiven and saved. Jesus has performed several miracles in the book of John, He has told them He is God, He has forgiven the town prostitute (The Samaritan Woman), He has walked on the water, and proclaimed Himself to be the Living Water that gives life to anyone who thirsts for satisfaction that leads to holiness and righteousness. Now we see Him in action showing that He is a loving and forgiving God once again. When they bring this woman that they “caught in the act of adultery” Jesus begins to bring out that principle in Romans 2:1-6; Therefore you are inexcusable, O man, whoever you are who judge, for in whatever you judge another you condemn yourself; for you who judge practice the same things. 2 But we know that the judgment of God is according to truth against those who practice such things. 3 And do you think this, O man, you who judge those practicing such things, and doing the same, that you will escape the judgment of God? 4 Or do you despise the riches of His goodness, forbearance, and longsuffering, not knowing that the goodness of God leads you to repentance? 5 But in accordance with your hardness and your impenitent heart you are treasuring up for yourself wrath in the day of wrath and revelation of the righteous judgment of God, 6 who "will render to each one according to his deeds":

Jesus wants these Scribes and Pharisees to know that they are not without sin and we are not guilty either. Many times we judge people for sins they have done and we have done things just as bad or worse, yet we condemn them. If we have enough knowledge to condemn others, then we have enough knowledge to be condemned too. That is why we all need the forgiving grace of the Lord Jesus Christ.