Jesus was talking to his disciples. The word "you" is plural. Alternate translation: "that you do not believe lies" or "that no one deceives you" (See: [[rc://en/ta/man/translate/figs-you]] and [[rc://en/ta/man/translate/figs-activepassive]])
People coming in his name claim to represent him. Alternate translation: "claiming to be me" or "claiming to have my authority" (See: [[rc://en/ta/man/translate/figs-metonymy]])