after. Greek. meta. App-104.
Satan. The only occurance of this title in John. Before this clause in the Greek is the word tote, then, marking the point of time; it is strangely ignored in the Authorized Version It is significant that the rejection of the Lord's last appeal hardened Judas, so that his heart became open to the entrance of Satan. Up to this moment Judas had been possessed by the evil thought, now he is obsessed by the evil one.
Then. Therefore. The Lord knew what had taken place, and that further appeal was useless. He dismisses him to the work he is set upon. See the terrible words in Psalms 41:6, "His heart gathereth iniquity to itself; he goeth abroad, he telleth", exactly what Judas did.