We often meet people with a label attached, a defining characteristic that precedes them. John does this for Judas Iscariot right away. What does this tell us about John's purpose in writing?
John the Baptist famously pointed to Jesus, saying, "Behold, the Lamb of God!" (John 1:29). He set Jesus up as the main subject. John the Evangelist, centuries later, introduces Judas with a stark, defining phrase: "he who was about to betray him."
A Defining Identifier
This isn't just a historical footnote; it's a theological statement. By immediately highlighting Judas's future betrayal, John shapes our perception of Judas's actions and motives from the very beginning. It's a way of saying, "Pay attention to this man, but understand him through the lens of his ultimate treachery."
Why the Emphasis?
Some commentators suggest John wanted to make sure the reader knew exactly who was speaking and why their words were significant – or rather, insignificant in their spiritual intent, despite their outward plausibility. It guards against us being swayed by Judas's apparent concern for the poor, reminding us of his true heart.