Final answer:
According to the Gospels and Leonardo da Vinci's depiction of the Last Supper, Jesus knew that Judas would betray Him.
Step-by-step explanation:
The answer to your question is Judas. According to the Gospels, Jesus knew that Judas would betray Him. In Leonardo da Vinci's depiction of the Last Supper, Jesus and the apostles are shown reacting to the announcement that one of them will betray Him, and Judas is depicted on the same side of the table as Christ and the other apostles. This portrayal infuses psychology into the work, as the viewer must determine which figure is Judas, who will betray Christ.