The Lord Jesus did not condone the woman's adultery but, as merely the "second man" and the "last Adam" (I Cor.15:45,47), He had no authority to overturn the Roman law and have her stoned. What we are saying is that even though Jesus was God come down to earth, the Judge of all flesh - He had not come in that capacity at this time. This He shall do upon His return. As Philippians 2:5-8 and Hebrews 2:5-18 explain, Jesus took upon Himself the form of a servant, humbled Himself to human limitations, entered the arena of human affairs and though He never ceased to be God, He went about defeating the Devil and redeeming the fallen race purely as an unfallen man. In so doing, He demonstrated that the first Adam could have defeated Satan in the contest in Eden - that Satan is so limited that an unfallen man can defeat him and be victorious over temptation and sin by standing on God's Word, be it written as in Jesus' case (Mat.4:1-11) or only spoken as in Adam's case (Gen.2:16-17).
Thus the Judge had laid aside His Judicial Robe and had voluntarily accepted certain limitations including that of submission to the will of the Father in all matters. Jesus had divested Himself of all authority to act in the capacity as a Judge. Lest the reader doubt this or consider such a declaration offensive or demeaning to the person and Holy character of our Lord, remember that Jesus Himself so taught on another occasion (Luk.12:13-14).
Now observe what the Master teacher has accomplished. The Lord Jesus would not deal with the woman in the presence of unbelievers (I Cor.6:1 & 6). His tactic emptied the "Bible study" of the lost hypocrites. This freed Him to deal with her among and within the family of God. The unnamed woman was said to be standing "in the midst" (vs.9). Had everyone left, how could she have been "in the midst"? It does not say that all the people whom our Lord had been instructing went out, but only her accusers, having been convicted. The rest (vs.2) continued with their teacher, the adulteress being in their midst. Jesus is "left alone" in the sense that His antagonists, having departed, left Him with only true seekers - those of His own "family". It cannot mean "alone" in the absolute sense for we know that the woman was there. The "none" of verse 10 is with regard to the accusers who had burst in with her.
The point being made is that the Lord does not deal with His own concerning their sins in the presence of the wicked. Now that the "courtroom" had been cleared of the infidels, the problem at