At the Last Supper in Matthew, how did Jesus describe his betrayer?

Answer: He dipped his hand in the bowl

Jesus said, "The one who has dipped his hand into the bowl with Me will betray Me." Judas then asked, "Surely not I, Rabbi?"

“Jesus answered, “The one who has dipped his hand into the bowl with Me will betray Me.”— Matthew 26:23 (BSB)