And they which heard it, being convicted by their own conscience, went out one by one, beginning at the eldest, even unto the last: and Jesus was left alone, and the woman standing in the midst. Being convicted by their own conscience - So it is likely they were all guilty of similar crimes. Their own is not in the original, and is needless: being convicted by conscience is expressive enough.
Beginning at the eldest even unto the last - Απο των πρεσβυτερων ἑως των εσχατων, from the most honorable to those of the least repute. In this sense the words are undoubtedly to be understood.
The woman standing in the midst - But if they all went out, how could she be in the midst? It is not said that all the people whom our Lord had been instructing went out, but only her accusers: see John 8:2. The rest undoubtedly continued with their teacher.