Final answer:
Henry's statement "Suffer not yourselves to be betrayed with a kiss," is an allusion to the Biblical betrayal of Jesus by Judas, which is used as a rhetorical strategy to emotionally resonate with the audience.
Step-by-step explanation:
When Henry states, "Suffer not yourselves to be betrayed with a kiss," he is employing the rhetorical strategy of allusion. This statement is a reference to the betrayal of Jesus by Judas Iscariot in the Bible, where Judas uses a kiss to identify Jesus to the soldiers that ultimately arrest him. Such a reference leverages the collective knowledge and emotional associations of the audience, enhancing the persuasive impact of his speech without resorting to explicit logical arguments or a direct explanation of his own authority or credibility.